Toan_5

["3 T\u00d7m c\u00b8c ph\u00a9n s\u00e8 b\u00bbng nhau trong c\u00b8c ph\u00a9n s\u00e8 sau : . 4 So s\u00b8nh c\u00b8c ph\u00a9n s\u00e8 : a) v\u00b5 ; b) v\u00b5 ; c) v\u00b5 . 5 a) Vi\u00d5t c\u00b8c ph\u00a9n s\u00e8 theo th\u00f8 t\u00f9 t\u00f5 b\u00d0 \u00ae\u00d5n l\u00edn. b) Vi\u00d5t c\u00b8c ph\u00a9n s\u00e8 theo th\u00f8 t\u00f9 t\u00f5 l\u00edn \u00ae\u00d5n b\u00d0. \u00a4n t\u00cbp v\u00d2 s\u00e8 th\u00cbp ph\u00a9n 1 \u00a7\u00e4c s\u00e8 th\u00cbp ph\u00a9n ; n\u00aau ph\u00c7n nguy\u00aan, ph\u00c7n th\u00cbp ph\u00a9n v\u00b5 gi\u00b8 tr\u00de theo v\u00de tr\u00dd c\u00f1a m\u00e7i ch\u00f7 s\u00e8 trong s\u00e8 \u00ae\u00e3 : 63,42 ; 99,99 ; 81,325 ; 7,081. 2 Vi\u00d5t s\u00e8 th\u00cbp ph\u00a9n c\u00e3 : a) T\u00b8m \u00ae\u00acn v\u00de, s\u00b8u ph\u00c7n m\u00f0\u00eai, n\u00a8m ph\u00c7n tr\u00a8m (t\u00f8c l\u00b5 t\u00b8m \u00ae\u00acn v\u00de v\u00b5 s\u00b8u m\u00f0\u00aci l\u00a8m ph\u00c7n tr\u00a8m). b) B\u00b6y m\u00f0\u00aci hai \u00ae\u00acn v\u00de, b\u00e8n ph\u00c7n m\u00f0\u00eai, ch\u00ddn ph\u00c7n tr\u00a8m, ba ph\u00c7n ngh\u00d7n (t\u00f8c l\u00b5 b\u00b6y m\u00f0\u00aci hai \u00ae\u00acn v\u00de v\u00b5 b\u00e8n tr\u00a8m ch\u00ddn m\u00f0\u00aci ba ph\u00c7n ngh\u00d7n). c) Kh\u00abng \u00ae\u00acn v\u00de, b\u00e8n ph\u00c7n tr\u00a8m. 3 Vi\u00d5t th\u00aam ch\u00f7 s\u00e8 0 v\u00b5o b\u00aan ph\u00b6i ph\u00c7n th\u00cbp ph\u00a9n c\u00f1a m\u00e7i s\u00e8 th\u00cbp ph\u00a9n \u00ae\u00d3 c\u00b8c s\u00e8 th\u00cbp ph\u00a9n d\u00f0\u00edi \u00ae\u00a9y \u00ae\u00d2u c\u00e3 hai ch\u00f7 s\u00e8 \u00eb ph\u00c7n th\u00cbp ph\u00a9n. 74,6 ; 284,3 ; 401,25 ; 104. 150","4 Vi\u00d5t c\u00b8c s\u00e8 sau d\u00f0\u00edi d\u00b9ng s\u00e8 th\u00cbp ph\u00a9n : b) . a) . 5> 78,6 ... 78,59 28,300 ... 28,3 9,478 ... 9,48 0,916 ... 0,906 <? = \u00a4n t\u00cbp v\u00d2 s\u00e8 th\u00cbp ph\u00a9n (ti\u00d5p theo) 1 Vi\u00d5t c\u00b8c s\u00e8 sau d\u00f0\u00edi d\u00b9ng ph\u00a9n s\u00e8 th\u00cbp ph\u00a9n : a) 0,3 ; 0,72 ; 1,5 ; 9,347. b) . 2 a) Vi\u00d5t s\u00e8 th\u00cbp ph\u00a9n d\u00f0\u00edi d\u00b9ng t\u00d8 s\u00e8 ph\u00c7n tr\u00a8m : 0,35 = ... ; 0,5 = ... ; 8,75 = ... . 625% = ... . b) Vi\u00d5t t\u00d8 s\u00e8 ph\u00c7n tr\u00a8m d\u00f0\u00edi d\u00b9ng s\u00e8 th\u00cbp ph\u00a9n : 45% = ... ; 5% = ... ; 3 Vi\u00d5t c\u00b8c s\u00e8 \u00aeo sau d\u00f0\u00edi d\u00b9ng s\u00e8 th\u00cbp ph\u00a9n : a) gi\u00ea ; gi\u00ea ; ph\u00f3t. b) m ; km ; kg. 4 Vi\u00d5t c\u00b8c s\u00e8 sau theo th\u00f8 t\u00f9 t\u00f5 b\u00d0 \u00ae\u00d5n l\u00edn : a) 4,5 ; 4,23 ; 4,505 ; 4,203. b) 72,1 ; 69,8 ; 71,2 ; 69,78. 5 T\u00d7m m\u00e9t s\u00e8 th\u00cbp ph\u00a9n th\u00ddch h\u00eep \u00ae\u00d3 vi\u00d5t v\u00b5o ch\u00e7 ch\u00cam, sao cho : 0,1 < ... < 0,2. 151","\u00a4n t\u00cbp v\u00d2 \u00aeo \u00ae\u00e9 d\u00b5i v\u00b5 \u00aeo kh\u00e8i l\u00f0\u00eeng 1 a) Vi\u00d5t cho \u00ae\u00c7y \u00ae\u00f1 b\u00b6ng \u00ae\u00acn v\u00de \u00aeo \u00ae\u00e9 d\u00b5i sau : K\u00dd hi\u00d6u L\u00edn h\u00acn m\u00d0t M\u00d0t B\u00d0 h\u00acn m\u00d0t dam m dm Quan h\u00d6 gi\u00f7a c\u00b8c \u00ae\u00acn v\u00de \u00aeo 1m = 10dm = 0,1dam li\u00d2n nhau b) Vi\u00d5t cho \u00ae\u00c7y \u00ae\u00f1 b\u00b6ng \u00ae\u00acn v\u00de \u00aeo kh\u00e8i l\u00f0\u00eeng sau : K\u00dd hi\u00d6u L\u00edn h\u00acn ki-l\u00ab-gam Ki-l\u00ab-gam B\u00d0 h\u00acn ki-l\u00ab-gam t\u00can t\u00b9 y\u00d5n kg hg dag g Quan h\u00d6 gi\u00f7a c\u00b8c \u00ae\u00acn v\u00de \u00aeo 1kg = 10hg = 0,1 y\u00d5n li\u00d2n nhau c) Trong b\u00b6ng \u00ae\u00acn v\u00de \u00aeo \u00ae\u00e9 d\u00b5i (ho\u00c6c b\u00b6ng \u00ae\u00acn v\u00de \u00aeo kh\u00e8i l\u00f0\u00eeng) : \u2212 \u00a7\u00acn v\u00de l\u00edn g\u00cap bao nhi\u00aau l\u00c7n \u00ae\u00acn v\u00de b\u00d0 h\u00acn ti\u00d5p li\u00d2n ? \u2212 \u00a7\u00acn v\u00de b\u00d0 b\u00bbng m\u00e9t ph\u00c7n m\u00cay \u00ae\u00acn v\u00de l\u00edn h\u00acn ti\u00d5p li\u00d2n ? 2 Vi\u00d5t (theo m\u00c9u) : b) 1m = dam = 0,1dam a) 1m = 10dm = ... cm = ... mm 1m = ... km = ... km 1g = ... kg = ... kg 1km = ... m 1kg = ... t\u00can = ... t\u00can 1kg = ... g 1 t\u00can = ... kg 152","3 Vi\u00d5t s\u00e8 th\u00ddch h\u00eep v\u00b5o ch\u00e7 ch\u00cam (theo m\u00c9u) : a) 5285m = 5km 285m = 5,285km 1827m = ... km ... m = ..., ... km 2063m = ... km ... m = ..., ... km 702m = ... km ... m = ..., ... km b) 34dm = ... m ... dm = ..., ... m 786cm = ... m ... cm = ..., ... m 408cm = ... m ... cm = ..., ... m c) 6258g = 6kg 258g = 6,258kg 2065g = ... kg ... g = ..., ... kg 8047kg = ... t\u00can ... kg = ..., ... t\u00can \u00a4n t\u00cbp v\u00d2 \u00aeo \u00ae\u00e9 d\u00b5i v\u00b5 \u00aeo kh\u00e8i l\u00f0\u00eeng (ti\u00d5p theo) 1 Vi\u00d5t c\u00b8c s\u00e8 \u00aeo sau d\u00f0\u00edi d\u00b9ng s\u00e8 th\u00cbp ph\u00a9n : a) C\u00e3 \u00ae\u00acn v\u00de \u00aeo l\u00b5 ki-l\u00ab-m\u00d0t : 4km 382m ; 2km 79m ; 700m. b) C\u00e3 \u00ae\u00acn v\u00de \u00aeo l\u00b5 m\u00d0t : 7m 4dm ; 5m 9cm ; 5m 75mm. 2 Vi\u00d5t c\u00b8c s\u00e8 \u00aeo sau d\u00f0\u00edi d\u00b9ng s\u00e8 th\u00cbp ph\u00a9n : a) C\u00e3 \u00ae\u00acn v\u00de \u00aeo l\u00b5 ki-l\u00ab-gam : 2kg 350g ; 1kg 65g. b) C\u00e3 \u00ae\u00acn v\u00de \u00aeo l\u00b5 t\u00can : 2 t\u00can 77kg. 8 t\u00can 760kg ; 3 Vi\u00d5t s\u00e8 th\u00ddch h\u00eep v\u00b5o ch\u00e7 ch\u00cam : b) 0,075km = ... m ; a) 0,5m = ... cm ; d) 0,08 t\u00can = ... kg. c) 0,064kg = ... g ; 153","4 Vi\u00d5t s\u00e8 th\u00ddch h\u00eep v\u00b5o ch\u00e7 ch\u00cam : a) 3576m = ... km ; b) 53cm = ... m ; c) 5360kg = ... t\u00can ; d) 657g = ... kg. \u00a4n t\u00cbp v\u00d2 \u00aeo di\u00d6n t\u00ddch 1 a) Vi\u00d5t s\u00e8 th\u00ddch h\u00eep v\u00b5o ch\u00e7 ch\u00cam : km2 hm2 dam2 m2 dm2 cm2 mm2 1km2 1hm2 1dam2 1m2 1dm2 1cm2 1mm2 = ... hm2 = ... cm2 = ... dam2 = ... m2 = ... dm2 = ... cm2 = ... mm2 = ... km2 = ... m2 = ... dm2 = ... hm2 = ... dam2 Ch\u00f3 \u00fd : Khi \u00aeo di\u00d6n t\u00ddch ru\u00e9ng \u00ae\u00cat ng\u00f0\u00eai ta c\u00dfn d\u00efng \u00ae\u00acn v\u00de h\u00d0c-ta (ha). 1ha = ... m2. b) Trong b\u00b6ng \u00ae\u00acn v\u00de \u00aeo di\u00d6n t\u00ddch : \u2212 \u00a7\u00acn v\u00de l\u00edn g\u00cap bao nhi\u00aau l\u00c7n \u00ae\u00acn v\u00de b\u00d0 h\u00acn ti\u00d5p li\u00d2n ? \u2212 \u00a7\u00acn v\u00de b\u00d0 b\u00bbng m\u00e9t ph\u00c7n m\u00cay \u00ae\u00acn v\u00de l\u00edn h\u00acn ti\u00d5p li\u00d2n ? 2 Vi\u00d5t s\u00e8 th\u00ddch h\u00eep v\u00b5o ch\u00e7 ch\u00cam : 1ha = ... km2 a) 1m2 = ... dm2 = ... cm2 = ... mm2 4ha = ... km2 1ha = ... m2 1km2 = ... ha = ... m2 b) 1m2 = ... dam2 1m2 = ... hm2 = ... ha 1m2 = ... km2 3 Vi\u00d5t c\u00b8c s\u00e8 \u00aeo sau d\u00f0\u00edi d\u00b9ng s\u00e8 \u00aeo c\u00e3 \u00ae\u00acn v\u00de l\u00b5 h\u00d0c-ta : a) 65 000m2 ; 846 000m2 ; 5000m2. b) 6km2 ; 9,2km2 ; 0,3km2. 154","\u00a4n t\u00cbp v\u00d2 \u00aeo th\u00d3 t\u00ddch 1 a) Vi\u00d5t s\u00e8 th\u00ddch h\u00eep v\u00b5o ch\u00e7 ch\u00cam : T\u00aan K\u00dd hi\u00d6u Quan h\u00d6 gi\u00f7a c\u00b8c \u00ae\u00acn v\u00de \u00aeo li\u00d2n nhau M\u00d0t kh\u00e8i m3 1m3 = ... dm3 = ... cm3 \u00a7\u00d2-xi-m\u00d0t kh\u00e8i dm3 1dm3 = ... cm3 ; 1dm3 = 0,... m3 X\u00a8ng-ti-m\u00d0t kh\u00e8i cm3 1cm3 = 0,... dm3 b) Trong c\u00b8c \u00ae\u00acn v\u00de \u00aeo th\u00d3 t\u00ddch : \u2212 \u00a7\u00acn v\u00de l\u00edn g\u00cap bao nhi\u00aau l\u00c7n \u00ae\u00acn v\u00de b\u00d0 h\u00acn ti\u00d5p li\u00d2n ? \u2212 \u00a7\u00acn v\u00de b\u00d0 b\u00bbng m\u00e9t ph\u00c7n m\u00cay \u00ae\u00acn v\u00de l\u00edn h\u00acn ti\u00d5p li\u00d2n ? 2 Vi\u00d5t s\u00e8 th\u00ddch h\u00eep v\u00b5o ch\u00e7 ch\u00cam : 1dm3 = ... cm3 1m3 = ... dm3 7,268m3 = ... dm3 4,351dm3 = ... cm3 0,5m3 = ... dm3 3m3 2dm3 = ... dm3 0,2dm3 = ... cm3 1dm3 9cm3 = ... cm3 3 Vi\u00d5t c\u00b8c s\u00e8 \u00aeo sau d\u00f0\u00edi d\u00b9ng s\u00e8 th\u00cbp ph\u00a9n : a) C\u00e3 \u00ae\u00acn v\u00de \u00aeo l\u00b5 m\u00d0t kh\u00e8i : 6m3 272dm3 ; 2105dm3 ; 3m3 82dm3. b) C\u00e3 \u00ae\u00acn v\u00de \u00aeo l\u00b5 \u00ae\u00d2-xi-m\u00d0t kh\u00e8i : 8dm3 439cm3 ; 3670cm3 ; 5dm3 77cm3. \u00a4n t\u00cbp v\u00d2 \u00aeo di\u00d6n t\u00ddch v\u00b5 \u00aeo th\u00d3 t\u00ddch (ti\u00d5p theo) 1> 8m2 5dm2 ... 8,05m2 7m3 5dm3 ... 7,005m3 8m2 5dm2 ... 8,5m2 7m3 5dm3 ... 7,5m3 <? 8m2 5dm2 ... 8,005m2 2,94dm3 ... 2dm3 94cm3 = 155","2 M\u00e9t th\u00f6a ru\u00e9ng h\u00d7nh ch\u00f7 nh\u00cbt c\u00e3 chi\u00d2u d\u00b5i 150m, chi\u00d2u r\u00e9ng b\u00bbng chi\u00d2u d\u00b5i. Trung b\u00d7nh c\u00f8 100m2 c\u00f1a th\u00f6a ru\u00e9ng \u00ae\u00e3 thu \u00ae\u00f0\u00eec 60kg th\u00e3c. H\u00e1i tr\u00aan c\u00b6 th\u00f6a ru\u00e9ng \u00ae\u00e3 ng\u00f0\u00eai ta thu \u00ae\u00f0\u00eec bao nhi\u00aau t\u00can th\u00e3c ? 3 M\u00e9t b\u00d3 n\u00f0\u00edc d\u00b9ng h\u00d7nh h\u00e9p ch\u00f7 nh\u00cbt c\u00e3 c\u00b8c k\u00ddch th\u00f0\u00edc \u00aeo \u00eb trong l\u00dfng b\u00d3 l\u00b5 : chi\u00d2u d\u00b5i 4m, chi\u00d2u r\u00e9ng 3m, chi\u00d2u cao 2,5m. Bi\u00d5t r\u00bbng 80% th\u00d3 t\u00ddch c\u00f1a b\u00d3 \u00aeang ch\u00f8a n\u00f0\u00edc. H\u00e1i : a) Trong b\u00d3 c\u00e3 bao nhi\u00aau l\u00ddt n\u00f0\u00edc ? (1l = 1dm3) b) M\u00f8c n\u00f0\u00edc ch\u00f8a trong b\u00d3 cao bao nhi\u00aau m\u00d0t ? \u00a4n t\u00cbp v\u00d2 \u00aeo th\u00eai gian b) 1 tu\u00c7n l\u00d4 c\u00e3 ... ng\u00b5y 1 ng\u00b5y = ... gi\u00ea 1 Vi\u00d5t s\u00e8 th\u00ddch h\u00eep v\u00b5o ch\u00e7 ch\u00cam : 1 gi\u00ea = ... ph\u00f3t a) 1 th\u00d5 k\u00d8 = ... n\u00a8m 1 ph\u00f3t = ... gi\u00a9y 1 n\u00a8m = ... th\u00b8ng 1 n\u00a8m kh\u00abng nhu\u00cbn c\u00e3 ... ng\u00b5y 1 gi\u00ea 5 ph\u00f3t = ... ph\u00f3t 1 n\u00a8m nhu\u00cbn c\u00e3 ... ng\u00b5y 2 ng\u00b5y 2 gi\u00ea = ... gi\u00ea 1 th\u00b8ng c\u00e3 ... (ho\u00c6c ...) ng\u00b5y 144 ph\u00f3t = ... gi\u00ea ... ph\u00f3t Th\u00b8ng hai c\u00e3 ... ho\u00c6c ... ng\u00b5y 54 gi\u00ea = ... ng\u00b5y ... gi\u00ea 30 ph\u00f3t = ... gi\u00ea = 0,... gi\u00ea 2 Vi\u00d5t s\u00e8 th\u00ddch h\u00eep v\u00b5o ch\u00e7 ch\u00cam : 6 ph\u00f3t = ... gi\u00ea = 0,... gi\u00ea a) 2 n\u00a8m 6 th\u00b8ng = ... th\u00b8ng 12 ph\u00f3t = ... gi\u00ea = 0,... gi\u00ea 3 ph\u00f3t 40 gi\u00a9y = ... gi\u00a9y 3 gi\u00ea 15 ph\u00f3t = ...,... gi\u00ea 2 gi\u00ea 12 ph\u00f3t = ...,... gi\u00ea b) 28 th\u00b8ng = ... n\u00a8m ... th\u00b8ng 150 gi\u00a9y = ... ph\u00f3t ... gi\u00a9y c) 60 ph\u00f3t = ... gi\u00ea 45 ph\u00f3t = ... gi\u00ea = 0,... gi\u00ea 15 ph\u00f3t = ... gi\u00ea = 0,... gi\u00ea 1 gi\u00ea 30 ph\u00f3t = ...,... gi\u00ea 90 ph\u00f3t = ...,... gi\u00ea 156","d) 60 gi\u00a9y = ... ph\u00f3t 30 gi\u00a9y = ... ph\u00f3t = 0,... ph\u00f3t 90 gi\u00a9y = ...,... ph\u00f3t 2 ph\u00f3t 45 gi\u00a9y = ...,... ph\u00f3t 1 ph\u00f3t 30 gi\u00a9y = ...,... ph\u00f3t 1 ph\u00f3t 6 gi\u00a9y = ...,... ph\u00f3t 3 \u00a7\u00e5ng h\u00e5 ch\u00d8 bao nhi\u00aau gi\u00ea v\u00b5 bao nhi\u00aau ph\u00f3t ? XI XII I XI XII I X II X II IX III IX III VIII IV VIII IV VII VI V VII VI V XI XII I XI XII I X II X II IX III IX III VIII IV VIII IV VII VI V VII VI V 4 Khoanh v\u00b5o ch\u00f7 \u00ae\u00c6t tr\u00f0\u00edc c\u00a9u tr\u00b6 l\u00eai \u00ae\u00f3ng : M\u00e9t \u00ab t\u00ab d\u00f9 \u00ae\u00denh \u00aei m\u00e9t qu\u00b7ng \u00ae\u00f0\u00eang d\u00b5i 300km. \u00a4 t\u00ab \u00ae\u00e3 \u00aei v\u00edi v\u00cbn t\u00e8c 60 km\/gi\u00ea v\u00b5 \u00ae\u00b7 \u00aei \u00ae\u00f0\u00eec gi\u00ea. H\u00e1i \u00ab t\u00ab c\u00dfn ph\u00b6i \u00aei ti\u00d5p qu\u00b7ng \u00ae\u00f0\u00eang d\u00b5i bao nhi\u00aau ki-l\u00ab-m\u00d0t ? B. 165km \u00a4 t\u00ab c\u00dfn ph\u00b6i \u00aei ti\u00d5p qu\u00b7ng \u00ae\u00f0\u00eang l\u00b5 : D. 240km A. 135km C. 150km 157","II - \u00a4n t\u00cbp v\u00d2 c\u00b8c ph\u00d0p t\u00ddnh v\u00edi c\u00b8c s\u00e8 t\u00f9 nhi\u00aan, ph\u00a9n s\u00e8, s\u00e8 th\u00cbp ph\u00a9n Ph\u00d0p c\u00e9ng T\u00e6ng S\u00e8 h\u00b9ng Ph\u00d0p c\u00e9ng c\u00b8c s\u00e8 t\u00f9 nhi\u00aan, ph\u00a9n s\u00e8, s\u00e8 th\u00cbp ph\u00a9n \u00ae\u00d2u c\u00e3 c\u00b8c t\u00ddnh ch\u00cat sau : T\u00ddnh ch\u00cat giao ho\u00b8n : a+b=b+a T\u00ddnh ch\u00cat k\u00d5t h\u00eep : (a + b) + c = a + (b + c) C\u00e9ng v\u00edi 0 : a+0=0+a=a 1 T\u00ddnh : b) a) 889972 + 96308 ; c) d) 926,83 + 549,67. 2 T\u00ddnh b\u00bbng c\u00b8ch thu\u00cbn ti\u00d6n nh\u00cat : 581 + (878 + 419). a) (689 + 875) + 125 ; . b) 83,75 + 46,98 + 6,25. c) 5,87 + 28,69 + 4,13 ; 158","3 Kh\u00abng th\u00f9c hi\u00d6n ph\u00d0p t\u00ddnh, n\u00aau d\u00f9 \u00aeo\u00b8n k\u00d5t qu\u00b6 t\u00d7m x : a) x + 9,68 = 9,68 ; b) + x = . 4 V\u00dfi n\u00f0\u00edc th\u00f8 nh\u00cat m\u00e7i gi\u00ea ch\u00b6y \u00ae\u00f0\u00eec th\u00d3 t\u00ddch c\u00f1a b\u00d3, v\u00dfi n\u00f0\u00edc th\u00f8 hai m\u00e7i gi\u00ea ch\u00b6y \u00ae\u00f0\u00eec th\u00d3 t\u00ddch c\u00f1a b\u00d3. H\u00e1i khi c\u00b6 hai v\u00dfi n\u00f0\u00edc c\u00efng ch\u00b6y v\u00b5o b\u00d3 trong m\u00e9t gi\u00ea th\u00d7 \u00ae\u00f0\u00eec bao nhi\u00aau ph\u00c7n tr\u00a8m th\u00d3 t\u00ddch c\u00f1a b\u00d3 ? Ph\u00d0p tr\u00f5 Hi\u00d6u S\u00e8 b\u00de tr\u00f5 S\u00e8 tr\u00f5 Ch\u00f3 \u00fd : a\u2212a=0 a\u22120=a 1 T\u00ddnh r\u00e5i th\u00f6 l\u00b9i (theo m\u00c9u) : a) M\u00c9u : 5746 Th\u00f6 l\u00b9i : 3784 \u2212 + 1962 1962 3784 5746 8923 \u2212 4157 ; 27069 \u2212 9537 159","b) M\u00c9u : . Th\u00f6 l\u00b9i : . . c) M\u00c9u : 7,254 Th\u00f6 l\u00b9i : 4,576 \u2212 + 2,678 2,678 4,576 7,254 7,284 \u2212 5,596 ; 0,863 \u2212 0,298 2 T\u00d7m x : b) x \u2212 0,35 = 2,55. a) x + 5,84 = 9,16 ; 3 M\u00e9t x\u00b7 c\u00e3 540,8ha \u00ae\u00cat tr\u00e5ng l\u00f3a. Di\u00d6n t\u00ddch \u00ae\u00cat tr\u00e5ng hoa \u00ddt h\u00acn di\u00d6n t\u00ddch \u00ae\u00cat tr\u00e5ng l\u00f3a 385,5ha. T\u00ddnh t\u00e6ng di\u00d6n t\u00ddch \u00ae\u00cat tr\u00e5ng l\u00f3a v\u00b5 tr\u00e5ng hoa c\u00f1a x\u00b7 \u00ae\u00e3. Luy\u00d6n t\u00cbp . 1 T\u00ddnh : 594,72 + 406,38 \u2212 329,47. a) b) b) 578,69 + 281,78 ; d) 83,45 \u2212 30,98 \u2212 42,47. 2 T\u00ddnh b\u00bbng c\u00b8ch thu\u00cbn ti\u00d6n nh\u00cat : a) c) 69,78 + 35,97 + 30,22 ; 160","3 M\u00e9t gia \u00ae\u00d7nh c\u00abng nh\u00a9n s\u00f6 d\u00f4ng ti\u00d2n l\u00f0\u00acng h\u00bbng th\u00b8ng nh\u00f0 sau : s\u00e8 ti\u00d2n l\u00f0\u00acng \u00ae\u00d3 chi cho ti\u00d2n \u00a8n c\u00f1a gia \u00ae\u00d7nh v\u00b5 ti\u00d2n h\u00e4c c\u00f1a c\u00b8c con, s\u00e8 ti\u00d2n l\u00f0\u00acng \u00ae\u00d3 tr\u00b6 ti\u00d2n thu\u00aa nh\u00b5 v\u00b5 ti\u00d2n chi ti\u00aau c\u00b8c vi\u00d6c kh\u00b8c, c\u00dfn l\u00b9i l\u00b5 ti\u00d2n \u00ae\u00d3 d\u00b5nh. a) H\u00e1i m\u00e7i th\u00b8ng gia \u00ae\u00d7nh \u00ae\u00e3 \u00ae\u00d3 d\u00b5nh \u00ae\u00f0\u00eec bao nhi\u00aau ph\u00c7n tr\u00a8m s\u00e8 ti\u00d2n l\u00f0\u00acng ? b) N\u00d5u s\u00e8 ti\u00d2n l\u00f0\u00acng l\u00b5 4 000 000 \u00ae\u00e5ng m\u00e9t th\u00b8ng th\u00d7 gia \u00ae\u00d7nh \u00ae\u00e3 \u00ae\u00d3 d\u00b5nh \u00ae\u00f0\u00eec bao nhi\u00aau ti\u00d2n m\u00e7i th\u00b8ng ? Ph\u00d0p nh\u00a9n T\u00ddch Th\u00f5a s\u00e8 Ph\u00d0p nh\u00a9n c\u00b8c s\u00e8 t\u00f9 nhi\u00aan, ph\u00a9n s\u00e8, s\u00e8 th\u00cbp ph\u00a9n \u00ae\u00d2u c\u00e3 c\u00b8c t\u00ddnh ch\u00cat sau : T\u00ddnh ch\u00cat giao ho\u00b8n : a\u00d7b=b\u00d7a T\u00ddnh ch\u00cat k\u00d5t h\u00eep : (a \u00d7 b) \u00d7 c = a \u00d7 (b \u00d7 c) Nh\u00a9n m\u00e9t t\u00e6ng v\u00edi m\u00e9t s\u00e8 : (a + b) \u00d7 c = a \u00d7 c + b \u00d7 c Ph\u00d0p nh\u00a9n c\u00e3 th\u00f5a s\u00e8 b\u00bbng 1 : 1 \u00d7 a = a \u00d7 1 = a Ph\u00d0p nh\u00a9n c\u00e3 th\u00f5a s\u00e8 b\u00bbng 0 : 0 \u00d7 a = a \u00d7 0 = 0. 161","1 T\u00ddnh : 6120 \u00d7 205. a) 4802 \u00d7 324 ; b) . c) 35,4 \u00d7 6,8 ; 21,76 \u00d7 2,05. 2 T\u00ddnh nh\u00c8m : b) 417,56 \u00d7 100 c) 28,5 \u00d7 100 a) 3,25 \u00d7 10 417,56 \u00d7 0,01 28,5 \u00d7 0,01 3,25 \u00d7 0,1 3 T\u00ddnh b\u00bbng c\u00b8ch thu\u00cbn ti\u00d6n nh\u00cat : b) 0,5 \u00d7 9,6 \u00d7 2 ; a) 2,5 \u00d7 7,8 \u00d7 4 ; d) 8,3 \u00d7 7,9 + 7,9 \u00d7 1,7. c) 8,36 \u00d7 5 \u00d7 0,2 ; 4 M\u00e9t \u00ab t\u00ab v\u00b5 m\u00e9t xe m\u00b8y kh\u00ebi h\u00b5nh c\u00efng m\u00e9t l\u00f3c v\u00b5 \u00aei ng\u00f0\u00eec chi\u00d2u nhau. \u00a4 t\u00ab \u00aei t\u00f5 A v\u00edi v\u00cbn t\u00e8c 48,5 km\/gi\u00ea, xe m\u00b8y \u00aei t\u00f5 B v\u00edi v\u00cbn t\u00e8c 33,5 km\/gi\u00ea. Sau 1 gi\u00ea 30 ph\u00f3t \u00ab t\u00ab v\u00b5 xe m\u00b8y g\u00c6p nhau t\u00b9i C. H\u00e1i qu\u00b7ng \u00ae\u00f0\u00eang AB d\u00b5i bao nhi\u00aau ki-l\u00ab-m\u00d0t ? Luy\u00d6n t\u00cbp 1 Chuy\u00d3n th\u00b5nh ph\u00d0p nh\u00a9n r\u00e5i t\u00ddnh : a) 6,75kg + 6,75kg + 6,75kg ; b) 7,14m2 + 7,14m2 + 7,14m2 \u00d7 3 ; c) 9,26dm3 \u00d7 9 + 9,26dm3. 2 T\u00ddnh : b) (3,125 + 2,075) \u00d7 2. a) 3,125 + 2,075 \u00d7 2 ; 3 Cu\u00e8i n\u00a8m 2000 s\u00e8 d\u00a9n c\u00f1a n\u00f0\u00edc ta l\u00b5 77 515 000 ng\u00f0\u00eai. N\u00d5u t\u00d8 l\u00d6 t\u00a8ng d\u00a9n s\u00e8 h\u00bbng n\u00a8m l\u00b5 1,3% th\u00d7 \u00ae\u00d5n h\u00d5t n\u00a8m 2001 s\u00e8 d\u00a9n c\u00f1a n\u00f0\u00edc ta l\u00b5 bao nhi\u00aau ng\u00f0\u00eai ? 4 M\u00e9t thuy\u00d2n m\u00b8y \u00aei xu\u00abi d\u00dfng t\u00f5 b\u00d5n A \u00ae\u00d5n b\u00d5n B. V\u00cbn t\u00e8c c\u00f1a thuy\u00d2n m\u00b8y khi n\u00f0\u00edc l\u00c6ng l\u00b5 22,6 km\/gi\u00ea v\u00b5 v\u00cbn t\u00e8c d\u00dfng n\u00f0\u00edc l\u00b5 2,2 km\/gi\u00ea. Sau 1 gi\u00ea 15 ph\u00f3t th\u00d7 thuy\u00d2n m\u00b8y \u00ae\u00d5n b\u00d5n B. T\u00ddnh \u00ae\u00e9 d\u00b5i qu\u00b7ng s\u00abng AB. H\u00f0\u00edng d\u00c9n : V\u00cbn t\u00e8c c\u00f1a thuy\u00d2n m\u00b8y khi xu\u00abi d\u00dfng b\u00bbng t\u00e6ng v\u00cbn t\u00e8c c\u00f1a thuy\u00d2n m\u00b8y khi n\u00f0\u00edc l\u00c6ng v\u00b5 v\u00cbn t\u00e8c d\u00dfng n\u00f0\u00edc. 162","Ph\u00d0p chia a) Trong ph\u00d0p chia h\u00d5t : Th-\u00acng S\u00e8 b\u00de chia S\u00e8 chia Ch\u00f3 \u00fd : Kh\u00abng c\u00e3 ph\u00d0p chia cho s\u00e8 0. a:1=a a : a = 1 (a kh\u00b8c 0) 0 : b = 0 (b kh\u00b8c 0) b) Trong ph\u00d0p chia c\u00e3 d\u00f0 : S\u00e8 b\u00de chia S\u00e8 chia Th-\u00acng S\u00e8 d- Ch\u00f3 \u00fd : S\u00e8 d\u00f0 ph\u00b6i b\u00d0 h\u00acn s\u00e8 chia. 1 T\u00ddnh r\u00e5i th\u00f6 l\u00b9i (theo m\u00c9u) : M\u00c9u : 5832 24 5837 24 103 243 103 243 072 077 05 Th\u00f6 l\u00b9i : 243 \u00d7 24 = 5832. Th\u00f6 l\u00b9i : 243 \u00d7 24 + 5 = 5837. a) 8192 : 32 ; 15335 : 42. b) 75,95 : 3,5 ; 97,65 : 21,7 (th\u00f0\u00acng l\u00b5 s\u00e8 th\u00cbp ph\u00a9n). Ch\u00f3 \u00fd : Ph\u00d0p chia h\u00d5t : a : b = c, ta c\u00e3 a = c \u00d7 b (b kh\u00b8c 0). Ph\u00d0p chia c\u00e3 d\u00f0 : a : b = c (d\u00f0 r), ta c\u00e3 a = c \u00d7 b + r (0 < r < b). 163","2 T\u00ddnh : b) . a) 48 : 0,01 95 : 0,1 48 \u00d7 100 72 : 0,01 3 T\u00ddnh nh\u00c8m : a) 25 : 0,1 32 : 0,5 75 : 0,5 25 \u00d7 10 32 \u00d7 2 125 : 0,25 b) 11 : 0,25 11 \u00d7 4 b) (6,24 + 1,26) : 0,75. 4 T\u00ddnh b\u00bbng hai c\u00b8ch : a) Luy\u00d6n t\u00cbp . 1 T\u00ddnh : a) b) 72 : 45 281,6 : 8 300,72 : 53,7 15 : 50 912,8 : 28 0,162 : 0,36 2 T\u00ddnh nh\u00c8m : 8,4 : 0,01 9,4 : 0,1 a) 3,5 : 0,1 6,2 : 0,1 5,5 : 0,01 7,2 : 0,01 20 : 0,25 b) 12 : 0,5 11 : 0,25 24 : 0,5 15 : 0,25 3 Vi\u00d5t k\u00d5t qu\u00b6 ph\u00d0p chia d\u00f0\u00edi d\u00b9ng ph\u00a9n s\u00e8 v\u00b5 s\u00e8 th\u00cbp ph\u00a9n (theo m\u00c9u) : a) 3 : 4 ; b) 7 : 5 ; c) 1 : 2 ; d) 7 : 4. M\u00c9u : a) 3 : 4 = = 0,75. 164","4 Khoanh v\u00b5o ch\u00f7 \u00ae\u00c6t tr\u00f0\u00edc c\u00a9u tr\u00b6 l\u00eai \u00ae\u00f3ng : M\u00e9t l\u00edp h\u00e4c c\u00e3 18 n\u00f7 v\u00b5 12 nam. H\u00e1i s\u00e8 h\u00e4c sinh nam chi\u00d5m bao nhi\u00aau ph\u00c7n tr\u00a8m s\u00e8 h\u00e4c sinh c\u00b6 l\u00edp ? A. 150% B. 60% C. 66% D. 40% luy\u00d6n t\u00cbp 1 T\u00d7m t\u00d8 s\u00e8 ph\u00c7n tr\u00a8m c\u00f1a : a) 2 v\u00b5 5 ; b) 2 v\u00b5 3 ; c) 3,2 v\u00b5 4 ; d) 7,2 v\u00b5 3,2. Ch\u00f3 \u00fd : N\u00d5u t\u00d8 s\u00e8 ph\u00c7n tr\u00a8m l\u00b5 s\u00e8 th\u00cbp ph\u00a9n th\u00d7 ch\u00d8 l\u00cay \u00ae\u00d5n hai ch\u00f7 s\u00e8 \u00eb ph\u00c7n th\u00cbp ph\u00a9n. V\u00dd d\u00f4 : 1 : 6 = 0,166666... T\u00d8 s\u00e8 ph\u00c7n tr\u00a8m c\u00f1a 1 v\u00b5 6 l\u00b5 : 16,66%. 2 T\u00ddnh : b) 56,9% \u2212 34,25% ; c) 100% \u2212 23% \u2212 47,5%. a) 2,5% + 10,34% ; 3 M\u00e9t huy\u00d6n c\u00e3 320ha \u00ae\u00cat tr\u00e5ng c\u00a9y c\u00b5 ph\u00aa v\u00b5 480ha \u00ae\u00cat tr\u00e5ng c\u00a9y cao su. H\u00e1i : a) Di\u00d6n t\u00ddch \u00ae\u00cat tr\u00e5ng c\u00a9y cao su b\u00bbng bao nhi\u00aau ph\u00c7n tr\u00a8m di\u00d6n t\u00ddch \u00ae\u00cat tr\u00e5ng c\u00a9y c\u00b5 ph\u00aa ? b) Di\u00d6n t\u00ddch \u00ae\u00cat tr\u00e5ng c\u00a9y c\u00b5 ph\u00aa b\u00bbng bao nhi\u00aau ph\u00c7n tr\u00a8m di\u00d6n t\u00ddch \u00ae\u00cat tr\u00e5ng c\u00a9y cao su ? 4 L\u00edp 5A d\u00f9 \u00ae\u00denh tr\u00e5ng 180 c\u00a9y, \u00ae\u00d5n nay \u00ae\u00b7 tr\u00e5ng \u00ae\u00f0\u00eec 45% s\u00e8 c\u00a9y. H\u00e1i theo d\u00f9 \u00ae\u00denh, l\u00edp 5A c\u00dfn ph\u00b6i tr\u00e5ng bao nhi\u00aau c\u00a9y n\u00f7a ? \u00a4n t\u00cbp v\u00d2 c\u00b8c ph\u00d0p t\u00ddnh v\u00edi s\u00e8 \u00aeo th\u00eai gian 1 T\u00ddnh : b) 5,4 gi\u00ea + 11,2 gi\u00ea a) 12 gi\u00ea 24 ph\u00f3t + 3 gi\u00ea 18 ph\u00f3t 20,4 gi\u00ea \u2212 12,8 gi\u00ea 14 gi\u00ea 26 ph\u00f3t \u2212 5 gi\u00ea 42 ph\u00f3t 2 T\u00ddnh : b) 4,2 gi\u00ea \u00d7 2 a) 8 ph\u00f3t 54 gi\u00a9y \u00d7 2 37,2 ph\u00f3t : 3 38 ph\u00f3t 18 gi\u00a9y : 6 165","3 M\u00e9t ng\u00f0\u00eai \u00aei xe \u00ae\u00b9p \u00aei \u00ae\u00f0\u00eec m\u00e9t qu\u00b7ng \u00ae\u00f0\u00eang 18km v\u00edi v\u00cbn t\u00e8c 10 km\/gi\u00ea. H\u00e1i ng\u00f0\u00eai \u00aei xe \u00ae\u00b9p \u00ae\u00e3 \u00ae\u00b7 \u00aei h\u00d5t bao nhi\u00aau th\u00eai gian ? 4 M\u00e9t \u00ab t\u00ab \u00aei t\u00f5 H\u00b5 N\u00e9i l\u00f3c 6 gi\u00ea 15 ph\u00f3t v\u00b5 \u00ae\u00d5n H\u00b6i Ph\u00dfng l\u00f3c 8 gi\u00ea 56 ph\u00f3t. Gi\u00f7a \u00ae\u00f0\u00eang \u00ab t\u00ab ngh\u00d8 25 ph\u00f3t. V\u00cbn t\u00e8c c\u00f1a \u00ab t\u00ab l\u00b5 45 km\/gi\u00ea. T\u00ddnh qu\u00b7ng \u00ae\u00f0\u00eang t\u00f5 H\u00b5 N\u00e9i \u00ae\u00d5n H\u00b6i Ph\u00dfng. III - \u00a4n t\u00cbp v\u00d2 h\u00d7nh h\u00e4c \u00abn t\u00cbp v\u00d2 T\u00ddnh chu vi, di\u00d6n t\u00ddch m\u00e9t s\u00e8 h\u00d7nh H\u00d7nh ch\u00f7 nh\u00cbt H\u00d7nh tam gi\u00b8c b P = (a + b) \u00d7 2 hh h a S=a\u00d7b a a a H\u00d7nh vu\u00abng a\u00d7h a P=a\u00d74 S= S=a\u00d7a 2 H\u00d7nh b\u00d7nh h\u00b5nh H\u00d7nh thang b h S=a\u00d7h h (a + b) \u00d7 h a H\u00d7nh thoi S= 2 a H\u00d7nh tr\u00dfn n m\u00d7n O C = r \u00d7 2 \u00d7 3,14 S= r S = r \u00d7 r \u00d7 3,14 2 m 1 M\u00e9t khu v\u00f0\u00ean tr\u00e5ng c\u00a9y \u00a8n qu\u00b6 h\u00d7nh ch\u00f7 nh\u00cbt c\u00e3 chi\u00d2u d\u00b5i 120m, chi\u00d2u r\u00e9ng b\u00bbng chi\u00d2u d\u00b5i. a) T\u00ddnh chu vi khu v\u00f0\u00ean \u00ae\u00e3. b) T\u00ddnh di\u00d6n t\u00ddch khu v\u00f0\u00ean \u00ae\u00e3 v\u00edi \u00ae\u00acn v\u00de \u00aeo l\u00b5 m\u00d0t vu\u00abng, l\u00b5 h\u00d0c-ta. 166","2 H\u00d7nh b\u00aan l\u00b5 m\u00e9t m\u00b6nh \u00ae\u00cat h\u00d7nh thang 3cm \u00ae\u00f0\u00eec v\u00cf tr\u00aan b\u00b6n \u00ae\u00e5 t\u00d8 l\u00d6 1 : 1000. 2cm T\u00ddnh di\u00d6n t\u00ddch m\u00b6nh \u00ae\u00cat \u00ae\u00e3 v\u00edi \u00ae\u00acn v\u00de \u00aeo l\u00b5 m\u00d0t vu\u00abng. 5cm B 3 Tr\u00aan h\u00d7nh b\u00aan, h\u00b7y t\u00ddnh di\u00d6n t\u00ddch : a) H\u00d7nh vu\u00abng ABCD. 4cm b) Ph\u00c7n \u00ae\u00b7 t\u00ab m\u00b5u c\u00f1a h\u00d7nh tr\u00dfn. O AC 4cm 4cm D Luy\u00d6n t\u00cbp 1 M\u00e9t s\u00a9n b\u00e3ng \u00ae\u00f0\u00eec v\u00cf tr\u00aan b\u00b6n \u00ae\u00e5 t\u00d8 l\u00d6 1 : 1000 l\u00b5 m\u00e9t h\u00d7nh ch\u00f7 nh\u00cbt c\u00e3 chi\u00d2u d\u00b5i 11cm, chi\u00d2u r\u00e9ng 9cm. H\u00e1i : a) Chu vi s\u00a9n b\u00e3ng b\u00bbng bao nhi\u00aau m\u00d0t ? b) Di\u00d6n t\u00ddch s\u00a9n b\u00e3ng b\u00bbng bao nhi\u00aau m\u00d0t vu\u00abng ? 2 M\u00e9t s\u00a9n g\u00b9ch h\u00d7nh vu\u00abng c\u00e3 chu vi 48m. T\u00ddnh di\u00d6n t\u00ddch s\u00a9n g\u00b9ch \u00ae\u00e3. 3 M\u00e9t th\u00f6a ru\u00e9ng h\u00d7nh ch\u00f7 nh\u00cbt c\u00e3 chi\u00d2u d\u00b5i 100m, chi\u00d2u r\u00e9ng b\u00bbng chi\u00d2u d\u00b5i. B\u00b8c N\u00a8m tr\u00e5ng l\u00f3a tr\u00aan th\u00f6a ru\u00e9ng \u00ae\u00e3, c\u00f8 100m2 thu \u00ae\u00f0\u00eec 55kg th\u00e3c. H\u00e1i b\u00b8c N\u00a8m thu ho\u00b9ch \u00ae\u00f0\u00eec bao nhi\u00aau ki-l\u00ab-gam th\u00e3c tr\u00aan th\u00f6a ru\u00e9ng \u00ae\u00e3 ? 4 M\u00e9t h\u00d7nh thang c\u00e3 \u00ae\u00b8y l\u00edn 12cm, \u00ae\u00b8y b\u00d0 8cm v\u00b5 di\u00d6n t\u00ddch b\u00bbng di\u00d6n t\u00ddch h\u00d7nh vu\u00abng c\u00e3 c\u00b9nh 10cm. T\u00ddnh chi\u00d2u cao h\u00d7nh thang. 167","\u00a4n t\u00cbp v\u00d2 t\u00ddnh di\u00d6n t\u00ddch, th\u00d3 t\u00ddch m\u00e9t s\u00e8 h\u00d7nh H\u00d7nh h\u00e9p ch\u00f7 nh\u00cbt H\u00d7nh l\u00cbp ph-\u00acng c a b Sxung quanh = a \u00d7 a \u00d7 4 a Sto\u00b5n ph\u00c7n = a \u00d7 a \u00d7 6 V=a\u00d7a\u00d7a Sxung quanh = (a + b) \u00d7 2 \u00d7 c Sto\u00b5n ph\u00c7n = Sxung quanh + S\u00ae\u00b8y \u00d7 2 V=a\u00d7b\u00d7c 1 M\u00e9t ph\u00dfng h\u00e4c d\u00b9ng h\u00d7nh h\u00e9p ch\u00f7 nh\u00cbt c\u00e3 chi\u00d2u d\u00b5i 6m, chi\u00d2u r\u00e9ng 4,5m v\u00b5 chi\u00d2u cao 4m. Ng\u00f0\u00eai ta mu\u00e8n qu\u00d0t v\u00abi tr\u00c7n nh\u00b5 v\u00b5 b\u00e8n b\u00f8c t\u00f0\u00eang ph\u00dda trong ph\u00dfng. Bi\u00d5t r\u00bbng di\u00d6n t\u00ddch c\u00b8c c\u00f6a b\u00bbng 8,5m2, h\u00b7y t\u00ddnh di\u00d6n t\u00ddch c\u00c7n qu\u00d0t v\u00abi. 2 B\u00b9n An l\u00b5m m\u00e9t c\u00b8i h\u00e9p d\u00b9ng h\u00d7nh l\u00cbp ph\u00f0\u00acng b\u00bbng b\u00d7a c\u00e3 c\u00b9nh 10cm. a) T\u00ddnh th\u00d3 t\u00ddch c\u00b8i h\u00e9p \u00ae\u00e3. b) N\u00d5u d\u00b8n gi\u00cay m\u00b5u t\u00cat c\u00b6 c\u00b8c m\u00c6t ngo\u00b5i c\u00f1a h\u00e9p \u00ae\u00e3 th\u00d7 b\u00b9n An c\u00c7n d\u00efng bao nhi\u00aau x\u00a8ng-ti-m\u00d0t vu\u00abng gi\u00cay m\u00b5u ? 3 M\u00e9t b\u00d3 n\u00f0\u00edc d\u00b9ng h\u00d7nh h\u00e9p ch\u00f7 nh\u00cbt c\u00e3 k\u00ddch th\u00f0\u00edc \u00eb trong l\u00dfng b\u00d3 l\u00b5 : chi\u00d2u d\u00b5i 2m, chi\u00d2u r\u00e9ng 1,5m v\u00b5 chi\u00d2u cao 1m. Khi b\u00d3 kh\u00abng c\u00e3 n\u00f0\u00edc ng\u00f0\u00eai ta m\u00eb v\u00dfi cho n\u00f0\u00edc ch\u00b6y v\u00b5o b\u00d3, m\u00e7i gi\u00ea \u00ae\u00f0\u00eec 0,5m3. H\u00e1i sau m\u00cay gi\u00ea b\u00d3 s\u00cf \u00ae\u00c7y n\u00f0\u00edc ? 168","Luy\u00d6n t\u00cbp b) 1 Vi\u00d5t s\u00e8 \u00aeo th\u00ddch h\u00eep v\u00b5o \u00ab tr\u00e8ng : H\u00d7nh h\u00e9p ch\u00f7 nh\u00cbt (1) (2) a) Chi\u00d2u cao 5cm 0,6m H\u00d7nh l\u00cbp ph\u00f0\u00acng (1) (2) \u00ae\u00e9 d\u00b5i c\u00b9nh 12cm 3,5m Chi\u00d2u d\u00b5i 8cm 1,2m Sxung quanh Sto\u00b5n ph\u00c7n Chi\u00d2u r\u00e9ng 6cm 0,5m Th\u00d3 t\u00ddch Sxung quanh Sto\u00b5n ph\u00c7n Th\u00d3 t\u00ddch 2 M\u00e9t b\u00d3 n\u00f0\u00edc d\u00b9ng h\u00d7nh h\u00e9p ch\u00f7 nh\u00cbt c\u00e3 th\u00d3 t\u00ddch 1,8m3. \u00a7\u00b8y b\u00d3 c\u00e3 chi\u00d2u d\u00b5i 1,5m, chi\u00d2u r\u00e9ng 0,8m. T\u00ddnh chi\u00d2u cao c\u00f1a b\u00d3. 3 M\u00e9t kh\u00e8i nh\u00f9a d\u00b9ng h\u00d7nh l\u00cbp ph\u00f0\u00acng c\u00e3 c\u00b9nh d\u00b5i 10cm v\u00b5 g\u00cap \u00ae\u00abi c\u00b9nh kh\u00e8i g\u00e7 c\u00f2ng h\u00d7nh l\u00cbp ph\u00f0\u00acng. H\u00e1i di\u00d6n t\u00ddch to\u00b5n ph\u00c7n c\u00f1a kh\u00e8i nh\u00f9a g\u00cap m\u00cay l\u00c7n di\u00d6n t\u00ddch to\u00b5n ph\u00c7n c\u00f1a kh\u00e8i g\u00e7 ? Luy\u00d6n t\u00cbp chung 1 M\u00e9t m\u00b6nh v\u00f0\u00ean h\u00d7nh ch\u00f7 nh\u00cbt c\u00e3 chu vi 160m, chi\u00d2u r\u00e9ng 30m. Ng\u00f0\u00eai ta tr\u00e5ng rau tr\u00aan m\u00b6nh v\u00f0\u00ean \u00ae\u00e3, trung b\u00d7nh c\u00f8 10m2 thu \u00ae\u00f0\u00eec 15kg rau. H\u00e1i tr\u00aan c\u00b6 m\u00b6nh v\u00f0\u00ean \u00ae\u00e3 ng\u00f0\u00eai ta thu ho\u00b9ch \u00ae\u00f0\u00eec bao nhi\u00aau ki-l\u00ab-gam rau ? 2 \u00a7\u00b8y c\u00f1a m\u00e9t h\u00d7nh h\u00e9p ch\u00f7 nh\u00cbt c\u00e3 chi\u00d2u d\u00b5i 60cm, chi\u00d2u r\u00e9ng 40cm. T\u00ddnh chi\u00d2u cao c\u00f1a h\u00d7nh h\u00e9p ch\u00f7 nh\u00cbt \u00ae\u00e3, bi\u00d5t di\u00d6n t\u00ddch xung quanh c\u00f1a h\u00d7nh h\u00e9p l\u00b5 6000cm2. 169","3 M\u00e9t m\u00b6nh \u00ae\u00cat \u00ae\u00f0\u00eec v\u00cf tr\u00aan b\u00b6n A 5cm B \u00ae\u00e5 t\u00d8 l\u00d6 1 : 1000 (xem h\u00d7nh v\u00cf). 2,5cm 2,5cm T\u00ddnh chu vi v\u00b5 di\u00d6n t\u00ddch m\u00b6nh C \u00ae\u00cat \u00ae\u00e3. E 4cm 3cm D IV - \u00a4n t\u00cbp v\u00d2 gi\u00b6i to\u00b8n M\u00e9t s\u00e8 d\u00b9ng b\u00b5i to\u00b8n \u00ae\u00b7 h\u00e4c \u2212 T\u00d7m s\u00e8 trung b\u00d7nh c\u00e9ng. \u2212 T\u00d7m hai s\u00e8 bi\u00d5t t\u00e6ng v\u00b5 hi\u00d6u c\u00f1a hai s\u00e8 \u00ae\u00e3. \u2212 T\u00d7m hai s\u00e8 bi\u00d5t t\u00e6ng v\u00b5 t\u00d8 s\u00e8 c\u00f1a hai s\u00e8 \u00ae\u00e3. \u2212 T\u00d7m hai s\u00e8 bi\u00d5t hi\u00d6u v\u00b5 t\u00d8 s\u00e8 c\u00f1a hai s\u00e8 \u00ae\u00e3. \u2212 B\u00b5i to\u00b8n li\u00aan quan \u00ae\u00d5n r\u00f3t v\u00d2 \u00ae\u00acn v\u00de. \u2212 B\u00b5i to\u00b8n v\u00d2 t\u00d8 s\u00e8 ph\u00c7n tr\u00a8m. \u2212 B\u00b5i to\u00b8n v\u00d2 chuy\u00d3n \u00ae\u00e9ng \u00ae\u00d2u. \u2212 B\u00b5i to\u00b8n c\u00e3 n\u00e9i dung h\u00d7nh h\u00e4c (chu vi, di\u00d6n t\u00ddch, th\u00d3 t\u00ddch). 1 M\u00e9t ng\u00f0\u00eai \u00aei xe \u00ae\u00b9p trong 3 gi\u00ea, gi\u00ea th\u00f8 nh\u00cat \u00aei \u00ae\u00f0\u00eec 12km, gi\u00ea th\u00f8 hai \u00aei \u00ae\u00f0\u00eec 18km, gi\u00ea th\u00f8 ba \u00aei \u00ae\u00f0\u00eec qu\u00b7ng \u00ae\u00f0\u00eang b\u00bbng n\u00f6a qu\u00b7ng \u00ae\u00f0\u00eang \u00aei trong hai gi\u00ea \u00ae\u00c7u. H\u00e1i trung b\u00d7nh m\u00e7i gi\u00ea ng\u00f0\u00eai \u00ae\u00e3 \u00aei \u00ae\u00f0\u00eec bao nhi\u00aau ki-l\u00ab-m\u00d0t ? 2 M\u00e9t m\u00b6nh \u00ae\u00cat h\u00d7nh ch\u00f7 nh\u00cbt c\u00e3 chu vi 120m. Chi\u00d2u d\u00b5i h\u00acn chi\u00d2u r\u00e9ng 10m. T\u00ddnh di\u00d6n t\u00ddch m\u00b6nh \u00ae\u00cat \u00ae\u00e3. 3 M\u00e9t kh\u00e8i kim lo\u00b9i c\u00e3 th\u00d3 t\u00ddch 3,2cm3 c\u00a9n n\u00c6ng 22,4g. H\u00e1i m\u00e9t kh\u00e8i kim lo\u00b9i c\u00efng ch\u00cat c\u00e3 th\u00d3 t\u00ddch 4,5cm3 c\u00a9n n\u00c6ng bao nhi\u00aau gam ? 170","Luy\u00d6n t\u00cbp A B 1 Tr\u00aan h\u00d7nh b\u00aan, di\u00d6n t\u00ddch c\u00f1a h\u00d7nh t\u00f8 gi\u00b8c ABED l\u00edn h\u00acn di\u00d6n t\u00ddch c\u00f1a h\u00d7nh tam gi\u00b8c DE C BEC l\u00b5 13,6cm2. T\u00ddnh di\u00d6n t\u00ddch c\u00f1a h\u00d7nh t\u00f8 gi\u00b8c ABCD, bi\u00d5t t\u00d8 s\u00e8 di\u00d6n t\u00ddch c\u00f1a h\u00d7nh tam gi\u00b8c BEC v\u00b5 di\u00d6n t\u00ddch h\u00d7nh t\u00f8 gi\u00b8c ABED l\u00b5 . 2 L\u00edp 5A c\u00e3 35 h\u00e4c sinh. S\u00e8 h\u00e4c sinh nam b\u00bbng s\u00e8 h\u00e4c sinh n\u00f7. H\u00e1i s\u00e8 h\u00e4c sinh n\u00f7 h\u00acn s\u00e8 h\u00e4c sinh nam l\u00b5 bao nhi\u00aau em ? 3 M\u00e9t \u00ab t\u00ab c\u00f8 \u00aei \u00ae\u00f0\u00eec 100km th\u00d7 ti\u00aau th\u00f4 12l x\u00a8ng. \u00a4 t\u00ab \u00ae\u00e3 \u00ae\u00b7 \u00aei \u00ae\u00f0\u00eec qu\u00b7ng \u00ae\u00f0\u00eang 75km th\u00d7 ti\u00aau th\u00f4 h\u00d5t bao nhi\u00aau l\u00ddt x\u00a8ng ? 4 H\u00d7nh b\u00aan l\u00b5 bi\u00d3u \u00ae\u00e5 cho bi\u00d5t t\u00d8 l\u00d6 x\u00d5p lo\u00b9i Gi\u00e1i h\u00e4c l\u00f9c c\u00f1a h\u00e4c sinh kh\u00e8i l\u00edp 5 Tr\u00f0\u00eang Ti\u00d3u h\u00e4c Th\u00beng L\u00eei. T\u00ddnh s\u00e8 h\u00e4c sinh 25% m\u00e7i lo\u00b9i, bi\u00d5t s\u00e8 h\u00e4c sinh x\u00d5p lo\u00b9i h\u00e4c l\u00f9c Kh\u00b8 kh\u00b8 l\u00b5 120 h\u00e4c sinh. ? % Trung b\u00d7nh 15% Luy\u00d6n t\u00cbp 1 a) T\u00d7m v\u00cbn t\u00e8c c\u00f1a m\u00e9t \u00ab t\u00ab, bi\u00d5t \u00ab t\u00ab \u00ae\u00e3 \u00aei \u00ae\u00f0\u00eec 120km trong 2 gi\u00ea 30 ph\u00f3t. b) B\u00d7nh \u00aei xe \u00ae\u00b9p v\u00edi v\u00cbn t\u00e8c 15 km\/gi\u00ea t\u00f5 nh\u00b5 \u00ae\u00d5n b\u00d5n xe m\u00cat n\u00f6a gi\u00ea. H\u00e1i nh\u00b5 B\u00d7nh c\u00b8ch b\u00d5n xe bao nhi\u00aau ki-l\u00ab-m\u00d0t ? c) M\u00e9t ng\u00f0\u00eai \u00aei b\u00e9 v\u00edi v\u00cbn t\u00e8c 5 km\/gi\u00ea v\u00b5 \u00aei \u00ae\u00f0\u00eec qu\u00b7ng \u00ae\u00f0\u00eang 6km. H\u00e1i ng\u00f0\u00eai \u00ae\u00e3 \u00ae\u00b7 \u00aei trong th\u00eai gian bao l\u00a9u ? 2 M\u00e9t \u00ab t\u00ab v\u00b5 m\u00e9t xe m\u00b8y xu\u00cat ph\u00b8t c\u00efng m\u00e9t l\u00f3c t\u00f5 A \u00ae\u00d5n B. Qu\u00b7ng \u00ae\u00f0\u00eang AB d\u00b5i 90km. H\u00e1i \u00ab t\u00ab \u00ae\u00d5n B tr\u00f0\u00edc xe m\u00b8y bao l\u00a9u, bi\u00d5t th\u00eai gian \u00ab t\u00ab \u00aei l\u00b5 1,5 gi\u00ea v\u00b5 v\u00cbn t\u00e8c \u00ab t\u00ab g\u00cap 2 l\u00c7n v\u00cbn t\u00e8c xe m\u00b8y ? 171","3 Hai \u00ab t\u00ab xu\u00cat ph\u00b8t t\u00f5 A v\u00b5 B c\u00efng m\u00e9t l\u00f3c v\u00b5 \u00aei ng\u00f0\u00eec chi\u00d2u nhau, sau 2 gi\u00ea ch\u00f3ng g\u00c6p nhau. Qu\u00b7ng \u00ae\u00f0\u00eang AB d\u00b5i 180km. T\u00d7m v\u00cbn t\u00e8c c\u00f1a m\u00e7i \u00ab t\u00ab, bi\u00d5t v\u00cbn t\u00e8c \u00ab t\u00ab \u00aei t\u00f5 A b\u00bbng v\u00cbn t\u00e8c \u00ab t\u00ab \u00aei t\u00f5 B. Luy\u00d6n t\u00cbp 1 M\u00e9t n\u00d2n nh\u00b5 h\u00d7nh ch\u00f7 nh\u00cbt c\u00e3 chi\u00d2u d\u00b5i 8m, chi\u00d2u r\u00e9ng b\u00bbng chi\u00d2u d\u00b5i. Ng\u00f0\u00eai ta d\u00efng c\u00b8c vi\u00aan g\u00b9ch h\u00d7nh vu\u00abng c\u00b9nh 4dm \u00ae\u00d3 l\u00b8t n\u00d2n nh\u00b5 \u00ae\u00e3, gi\u00b8 ti\u00d2n m\u00e7i vi\u00aan g\u00b9ch l\u00b5 20 000 \u00ae\u00e5ng. H\u00e1i l\u00b8t c\u00b6 n\u00d2n nh\u00b5 th\u00d7 h\u00d5t bao nhi\u00aau ti\u00d2n mua g\u00b9ch ? (Di\u00d6n t\u00ddch ph\u00c7n m\u00b9ch v\u00f7a kh\u00abng \u00ae\u00b8ng k\u00d3) 2 M\u00e9t th\u00f6a ru\u00e9ng h\u00d7nh thang c\u00e3 trung b\u00d7nh c\u00e9ng hai \u00ae\u00b8y l\u00b5 36m. Di\u00d6n t\u00ddch th\u00f6a ru\u00e9ng \u00ae\u00e3 b\u00bbng di\u00d6n t\u00ddch m\u00e9t m\u00b6nh \u00ae\u00cat h\u00d7nh vu\u00abng c\u00e3 chu vi 96m. a) T\u00ddnh chi\u00d2u cao c\u00f1a th\u00f6a ru\u00e9ng h\u00d7nh thang. b) Bi\u00d5t hi\u00d6u hai \u00ae\u00b8y l\u00b5 10m, t\u00ddnh \u00ae\u00e9 d\u00b5i m\u00e7i c\u00b9nh \u00ae\u00b8y c\u00f1a th\u00f6a ru\u00e9ng h\u00d7nh thang. 3 H\u00d7nh ch\u00f7 nh\u00cbt ABCD g\u00e5m h\u00d7nh thang EBCD v\u00b5 h\u00d7nh tam gi\u00b8c ADE c\u00e3 k\u00ddch th\u00f0\u00edc nh\u00f0 h\u00d7nh d\u00f0\u00edi \u00ae\u00a9y : A E 28cm B 28cm M D 84cm C a) T\u00ddnh chu vi h\u00d7nh ch\u00f7 nh\u00cbt ABCD. b) T\u00ddnh di\u00d6n t\u00ddch h\u00d7nh thang EBCD. c) Cho M l\u00b5 trung \u00aei\u00d3m c\u00f1a c\u00b9nh BC. T\u00ddnh di\u00d6n t\u00ddch h\u00d7nh tam gi\u00b8c EDM. 172","\u00abn t\u00cbp v\u00d2 bi\u00d3u \u00ae\u00e5 1 \u00a7\u00d3 bi\u00d3u th\u00de s\u00e8 c\u00a9y do t\u00f5ng h\u00e4c sinh trong nh\u00e3m c\u00a9y xanh tr\u00e5ng trong v\u00f0\u00ean tr\u00f0\u00eang c\u00e3 th\u00d3 d\u00efng bi\u00d3u \u00ae\u00e5 d\u00f0\u00edi \u00ae\u00a9y : S\u00e8 C\u00a2Y DO NH\u00e3M C\u00a2Y XANH TR\u00e5NG TRONG V\u00a6\u00eaN TR\u00a6\u00eaNG (S\u00e8 c\u00a9y) 8 7 6 5 4 3 2 1 0 Lan Ho\u00b5 Li\u00aan Mai D\u00f2ng (H\u00e4c sinh) D\u00f9a v\u00b5o bi\u00d3u \u00ae\u00e5 h\u00b7y tr\u00b6 l\u00eai c\u00b8c c\u00a9u h\u00e1i sau : a) C\u00e3 m\u00cay h\u00e4c sinh tr\u00e5ng c\u00a9y ? M\u00e7i h\u00e4c sinh tr\u00e5ng \u00ae\u00f0\u00eec bao nhi\u00aau c\u00a9y ? b) B\u00b9n n\u00b5o tr\u00e5ng \u00ae\u00f0\u00eec \u00ddt c\u00a9y nh\u00cat ? c) B\u00b9n n\u00b5o tr\u00e5ng \u00ae\u00f0\u00eec nhi\u00d2u c\u00a9y nh\u00cat ? d) Nh\u00f7ng b\u00b9n n\u00b5o tr\u00e5ng \u00ae\u00f0\u00eec nhi\u00d2u c\u00a9y h\u00acn b\u00b9n D\u00f2ng ? e) Nh\u00f7ng b\u00b9n n\u00b5o tr\u00e5ng \u00ae\u00f0\u00eec \u00ddt c\u00a9y h\u00acn b\u00b9n Li\u00aan ? 173","2 a) H\u00b7y b\u00e6 sung v\u00b5o c\u00b8c \u00ab c\u00dfn b\u00e1 tr\u00e8ng trong b\u00b6ng d\u00f0\u00edi \u00ae\u00a9y : k\u00d5t qu\u00b6 \u00aei\u00d2u tra v\u00d2 \u00fd th\u00ddch \u00a8n c\u00b8c lo\u00b9i qu\u00b6 c\u00f1a h\u00e4c sinh l\u00edp 5A Lo\u00b9i qu\u00b6 C\u00b8ch ghi s\u00e8 h\u00e4c sinh trong khi \u00aei\u00d2u tra S\u00e8 h\u00e4c sinh Cam 5 T\u00b8o 8 Nh\u00b7n 3 Chu\u00e8i Xo\u00b5i 6 b) D\u00f9a v\u00b5o b\u00b6ng tr\u00aan h\u00b7y v\u00cf ti\u00d5p c\u00b8c c\u00e9t c\u00dfn thi\u00d5u trong bi\u00d3u \u00ae\u00e5 d\u00f0\u00edi \u00ae\u00a9y : K\u00d5T QU\u00b6 \u00a7I\u00d2U TRA V\u00d2 \u00fd TH\u00ddCH \u00a1N C\u00b8C LO\u00b9I QU\u00b6 C\u00f1A H\u00e4C SINH L\u00edP 5A (S\u00e8 h\u00e4c sinh) 16 14 12 10 8 6 4 2 0 Cam T\u00b8o Nh\u00b7n Chu\u00e8i Xo\u00b5i (Lo\u00b9i qu\u00b6) 174","3 Khoanh v\u00b5o ch\u00f7 \u00ae\u00c6t tr\u00f0\u00edc c\u00a9u tr\u00b6 l\u00eai \u00ae\u00f3ng : Bi\u00d3u \u00ae\u00e5 d\u00f0\u00edi \u00ae\u00a9y cho bi\u00d5t k\u00d5t qu\u00b6 \u00aei\u00d2u tra v\u00d2 \u00fd th\u00ddch ch\u00aci c\u00b8c m\u00abn th\u00d3 thao c\u00f1a 40 h\u00e4c sinh : H\u00e4c sinh th\u00ddch \u00ae\u00b8 b\u00e3ng c\u00e3 kho\u00b6ng : Ch\u00b9y A. 5 h\u00e4c sinh \u00a7\u00b8 \u00a7\u00b8 c\u00c7u B. 9 h\u00e4c sinh b\u00e3ng C. 25 h\u00e4c sinh B\u00aci D. 20 h\u00e4c sinh Luy\u00d6n t\u00cbp chung 1 T\u00ddnh : a) 85793 \u2212 36841 + 3826 ; b) c) 325,97 + 86,54 + 103,46. b) x \u2212 7,2 = 3,9 + 2,5. 2 T\u00d7m x : a) x + 3,5 = 4,72 + 2,28 ; 3 M\u00e9t m\u00b6nh \u00ae\u00cat h\u00d7nh thang c\u00e3 \u00ae\u00b8y b\u00d0 l\u00b5 150m, \u00ae\u00b8y l\u00edn b\u00bbng \u00ae\u00b8y b\u00d0, chi\u00d2u cao b\u00bbng \u00ae\u00b8y l\u00edn. H\u00e1i di\u00d6n t\u00ddch m\u00b6nh \u00ae\u00cat b\u00bbng bao nhi\u00aau m\u00d0t vu\u00abng, bao nhi\u00aau h\u00d0c-ta ? 4 L\u00f3c 6 gi\u00ea, m\u00e9t \u00ab t\u00ab ch\u00eb h\u00b5ng \u00aei t\u00f5 A v\u00edi v\u00cbn t\u00e8c 45 km\/gi\u00ea. \u00a7\u00d5n 8 gi\u00ea, m\u00e9t \u00ab t\u00ab du l\u00dech c\u00f2ng \u00aei t\u00f5 A v\u00edi v\u00cbn t\u00e8c 60 km\/gi\u00ea v\u00b5 \u00aei c\u00efng chi\u00d2u v\u00edi \u00ab t\u00ab ch\u00eb h\u00b5ng. H\u00e1i \u00ae\u00d5n m\u00cay gi\u00ea th\u00d7 \u00ab t\u00ab du l\u00dech \u00aeu\u00e6i k\u00dep \u00ab t\u00ab ch\u00eb h\u00b5ng ? 5 T\u00d7m s\u00e8 t\u00f9 nhi\u00aan th\u00ddch h\u00eep c\u00f1a x sao cho : . 175","Luy\u00d6n t\u00cbp chung 1 T\u00ddnh : 1954 \u00d7 425 ; 2438 \u00d7 306. a) 683 \u00d7 35 ; b) . c) 36,66 : 7,8 ; 15,7 : 6,28 ; 27,63 : 0,45. d) 16 gi\u00ea 15 ph\u00f3t : 5 ; 14 ph\u00f3t 36 gi\u00a9y : 12. 2 T\u00d7m x : b) x : 2,5 = 4 ; a) 0,12 \u00d7 x = 6 ; d) x \u00d7 0,1 = . c) 5,6 : x = 4 ; 3 Trong ba ng\u00b5y m\u00e9t c\u00f6a h\u00b5ng b\u00b8n \u00ae\u00f0\u00eec 2400kg \u00ae\u00f0\u00eang. Ng\u00b5y th\u00f8 nh\u00cat b\u00b8n \u00ae\u00f0\u00eec 35% s\u00e8 \u00ae\u00f0\u00eang \u00ae\u00e3, ng\u00b5y th\u00f8 hai b\u00b8n \u00ae\u00f0\u00eec 40% s\u00e8 \u00ae\u00f0\u00eang \u00ae\u00e3. H\u00e1i ng\u00b5y th\u00f8 ba c\u00f6a h\u00b5ng b\u00b8n \u00ae\u00f0\u00eec bao nhi\u00aau ki-l\u00ab-gam \u00ae\u00f0\u00eang ? 4 M\u00e9t c\u00f6a h\u00b5ng b\u00b8n hoa qu\u00b6 (tr\u00b8i c\u00a9y) thu \u00ae\u00f0\u00eec 1 800 000 \u00ae\u00e5ng. T\u00ddnh ra s\u00e8 ti\u00d2n l\u00b7i b\u00bbng 20% s\u00e8 ti\u00d2n mua. H\u00e1i ti\u00d2n v\u00e8n \u00ae\u00d3 mua s\u00e8 hoa qu\u00b6 \u00ae\u00e3 l\u00b5 bao nhi\u00aau \u00ae\u00e5ng ? Luy\u00d6n t\u00cbp chung b) 1 T\u00ddnh : d) 3,42 : 0,57 \u00d7 8,4 \u2212 6,8. a) c) 3,57 \u00d7 4,1 + 2,43 \u00d7 4,1 ; 176","2 T\u00ddnh b\u00bbng c\u00b8ch thu\u00cbn ti\u00d6n nh\u00cat : a) b) . N\u00d5u 3 M\u00e9t b\u00d3 b\u00aci d\u00b9ng h\u00d7nh h\u00e9p ch\u00f7 nh\u00cbt c\u00e3 chi\u00d2u d\u00b5i 22,5m, chi\u00d2u r\u00e9ng 19,2m. b\u00d3 ch\u00f8a 414,72m3 n\u00f0\u00edc th\u00d7 m\u00f9c n\u00f0\u00edc trong b\u00d3 l\u00aan t\u00edi chi\u00d2u cao c\u00f1a b\u00d3. H\u00e1i chi\u00d2u cao c\u00f1a b\u00d3 l\u00b5 bao nhi\u00aau m\u00d0t ? 4 M\u00e9t con thuy\u00d2n \u00aei v\u00edi v\u00cbn t\u00e8c 7,2 km\/gi\u00ea khi n\u00f0\u00edc l\u00c6ng, v\u00cbn t\u00e8c c\u00f1a d\u00dfng n\u00f0\u00edc l\u00b5 1,6 km\/gi\u00ea. a) N\u00d5u thuy\u00d2n \u00aei xu\u00abi d\u00dfng th\u00d7 sau 3,5 gi\u00ea s\u00cf \u00aei \u00ae\u00f0\u00eec bao nhi\u00aau ki-l\u00ab-m\u00d0t ? b) N\u00d5u thuy\u00d2n \u00aei ng\u00f0\u00eec d\u00dfng th\u00d7 c\u00c7n bao nhi\u00aau th\u00eai gian \u00ae\u00d3 \u00aei \u00ae\u00f0\u00eec qu\u00b7ng \u00ae\u00f0\u00eang nh\u00f0 khi xu\u00abi d\u00dfng trong 3,5 gi\u00ea ? 5 T\u00d7m x : 8,75 \u00d7 x + 1,25 \u00d7 x = 20. Luy\u00d6n t\u00cbp chung 1 T\u00ddnh : a) 6,78 \u2212 (8,951 + 4,784) : 2,05 ; b) 6 gi\u00ea 45 ph\u00f3t + 14 gi\u00ea 30 ph\u00f3t : 5. 2 T\u00d7m s\u00e8 trung b\u00d7nh c\u00e9ng c\u00f1a : a) 19 ; 34 v\u00b5 46. b) 2,4 ; 2,7 ; 3,5 v\u00b5 3,8. 3 M\u00e9t l\u00edp h\u00e4c c\u00e3 19 h\u00e4c sinh trai, s\u00e8 h\u00e4c sinh g\u00b8i nhi\u00d2u h\u00acn s\u00e8 h\u00e4c sinh trai 2 b\u00b9n. H\u00e1i l\u00edp h\u00e4c \u00ae\u00e3 c\u00e3 bao nhi\u00aau ph\u00c7n tr\u00a8m h\u00e4c sinh trai, bao nhi\u00aau ph\u00c7n tr\u00a8m h\u00e4c sinh g\u00b8i ? 177","4 M\u00e9t th\u00f0 vi\u00d6n c\u00e3 6000 quy\u00d3n s\u00b8ch. C\u00f8 sau m\u00e7i n\u00a8m s\u00e8 s\u00b8ch c\u00f1a th\u00f0 vi\u00d6n l\u00b9i \u00ae\u00f0\u00eec t\u00a8ng th\u00aam 20% (so v\u00edi s\u00e8 s\u00b8ch c\u00f1a n\u00a8m tr\u00f0\u00edc). H\u00e1i sau hai n\u00a8m th\u00f0 vi\u00d6n \u00ae\u00e3 c\u00e3 t\u00cat c\u00b6 bao nhi\u00aau quy\u00d3n s\u00b8ch ? 5 M\u00e9t t\u00b5u thu\u00fb khi xu\u00abi d\u00dfng c\u00e3 v\u00cbn t\u00e8c 28,4 km\/gi\u00ea, khi ng\u00f0\u00eec d\u00dfng c\u00e3 v\u00cbn t\u00e8c 18,6 km\/gi\u00ea. T\u00ddnh v\u00cbn t\u00e8c c\u00f1a t\u00b5u thu\u00fb khi n\u00f0\u00edc l\u00c6ng v\u00b5 v\u00cbn t\u00e8c c\u00f1a d\u00dfng n\u00f0\u00edc. Luy\u00d6n t\u00cbp chung Ph\u00c7n 1. M\u00e7i b\u00b5i t\u00cbp d\u00f0\u00edi \u00ae\u00a9y c\u00e3 k\u00ccm theo m\u00e9t s\u00e8 c\u00a9u tr\u00b6 l\u00eai A, B, C, D (l\u00b5 \u00ae\u00b8p s\u00e8, k\u00d5t qu\u00b6 t\u00ddnh, ...). H\u00b7y khoanh v\u00b5o ch\u00f7 \u00ae\u00c6t tr\u00f0\u00edc c\u00a9u tr\u00b6 l\u00eai \u00ae\u00f3ng : 1 0,8% = ? A. B. C. D. 2 Bi\u00d5t 95% c\u00f1a m\u00e9t s\u00e8 l\u00b5 475, v\u00cby c\u00f1a s\u00e8 \u00ae\u00e3 l\u00b5 : A. 19 B. 95 C. 100 D. 500 3 Ng\u00f0\u00eai ta x\u00d5p c\u00b8c h\u00d7nh l\u00cbp ph\u00f0\u00acng nh\u00e1 th\u00b5nh c\u00b8c kh\u00e8i. Trong c\u00b8c kh\u00e8i d\u00f0\u00edi \u00ae\u00a9y, kh\u00e8i n\u00b5o c\u00e3 ch\u00f8a nhi\u00d2u h\u00d7nh l\u00cbp ph\u00f0\u00acng nh\u00cat ? A. B. C. D. 178","Ph\u00c7n 2 10cm 10cm 10cm 1 M\u00e9t t\u00cam b\u00d7a h\u00d7nh vu\u00abng \u00ae\u00b7 \u00ae\u00f0\u00eec t\u00ab m\u00b5u nh\u00f0 h\u00d7nh v\u00cf b\u00aan. T\u00ddnh : 10cm a) Di\u00d6n t\u00ddch c\u00f1a ph\u00c7n \u00ae\u00b7 t\u00ab m\u00b5u. b) Chu vi c\u00f1a ph\u00c7n kh\u00abng t\u00ab m\u00b5u. 2 M\u00d1 mua g\u00b5 v\u00b5 c\u00b8 h\u00d5t 88 000 \u00ae\u00e5ng. S\u00e8 ti\u00d2n mua c\u00b8 b\u00bbng 120% s\u00e8 ti\u00d2n mua g\u00b5. H\u00e1i m\u00d1 mua c\u00b8 h\u00d5t bao nhi\u00aau ti\u00d2n ? Luy\u00d6n t\u00cbp chung Ph\u00c7n 1. M\u00e7i b\u00b5i t\u00cbp d\u00f0\u00edi \u00ae\u00a9y c\u00e3 k\u00ccm theo m\u00e9t s\u00e8 c\u00a9u tr\u00b6 l\u00eai A, B, C, D (l\u00b5 \u00ae\u00b8p s\u00e8, k\u00d5t qu\u00b6 t\u00ddnh,...). H\u00b7y khoanh v\u00b5o ch\u00f7 \u00ae\u00c6t tr\u00f0\u00edc c\u00a9u tr\u00b6 l\u00eai \u00ae\u00f3ng : 1 M\u00e9t \u00ab t\u00ab \u00aei \u00ae\u00f0\u00eec 60km v\u00edi v\u00cbn t\u00e8c 60km\/gi\u00ea, ti\u00d5p \u00ae\u00e3 \u00ab t\u00ab \u00aei \u00ae\u00f0\u00eec 60km v\u00edi v\u00cbn t\u00e8c 30km\/gi\u00ea. Nh\u00f0 v\u00cby, th\u00eai gian \u00ab t\u00ab \u00ae\u00b7 \u00aei c\u00b6 hai \u00aeo\u00b9n \u00ae\u00f0\u00eang l\u00b5 : A. 1,5 gi\u00ea B. 2 gi\u00ea C. 3 gi\u00ea D. 4 gi\u00ea 2 M\u00e9t b\u00d3 c\u00b8 d\u00b9ng h\u00d7nh h\u00e9p ch\u00f7 nh\u00cbt c\u00e3 c\u00b8c k\u00ddch th\u00f0\u00edc ghi tr\u00aan h\u00d7nh v\u00cf. C\u00c7n \u00ae\u00e6 v\u00b5o b\u00d3 bao nhi\u00aau l\u00ddt n\u00f0\u00edc \u00ae\u00d3 n\u00f6a b\u00d3 c\u00e3 n\u00f0\u00edc ? A. 48l B. 70l C. 96l D. 140l 40cm 40cm 60cm 179","3 C\u00efng m\u00e9t l\u00f3c, V\u00f5 \u00aei ng\u00f9a v\u00edi v\u00cbn t\u00e8c 11 km\/gi\u00ea, L\u00d2nh \u00aei b\u00e9 v\u00edi v\u00cbn t\u00e8c 5 km\/gi\u00ea v\u00b5 \u00aei c\u00efng chi\u00d2u v\u00edi V\u00f5. Bi\u00d5t r\u00bbng khi b\u00bet \u00ae\u00c7u \u00aei L\u00d2nh c\u00b8ch V\u00f5 m\u00e9t qu\u00b7ng \u00ae\u00f0\u00eang 8km (xem h\u00d7nh v\u00cf). H\u00e1i sau bao nhi\u00aau ph\u00f3t V\u00f5 \u00aeu\u00e6i k\u00dep L\u00d2nh ? 8km V\u00f5 L\u00d2nh 11 km\/gi\u00ea 5 km\/gi\u00ea A. 45 ph\u00f3t B. 80 ph\u00f3t C. 60 ph\u00f3t D. 96 ph\u00f3t Ph\u00c7n 2 1 Tu\u00e6i c\u00f1a con g\u00b8i b\u00bbng tu\u00e6i m\u00d1, tu\u00e6i c\u00f1a con trai b\u00bbng tu\u00e6i m\u00d1. Tu\u00e6i c\u00f1a con g\u00b8i c\u00e9ng v\u00edi tu\u00e6i c\u00f1a con trai l\u00b5 18 tu\u00e6i. H\u00e1i m\u00d1 bao nhi\u00aau tu\u00e6i ? 2 Trong c\u00efng m\u00e9t n\u00a8m, m\u00cbt \u00ae\u00e9 d\u00a9n s\u00e8 \u00eb H\u00b5 N\u00e9i l\u00b5 2627 ng\u00f0\u00eai\/km2 (ngh\u00dca l\u00b5 c\u00f8 m\u00e7i ki-l\u00ab-m\u00d0t vu\u00abng c\u00e3 trung b\u00d7nh 2627 ng\u00f0\u00eai), m\u00cbt \u00ae\u00e9 d\u00a9n s\u00e8 \u00eb S\u00acn La l\u00b5 61 ng\u00f0\u00eai\/km2. a) Cho bi\u00d5t di\u00d6n t\u00ddch c\u00f1a Th\u00f1 \u00ae\u00ab H\u00b5 N\u00e9i l\u00b5 921km2, di\u00d6n t\u00ddch c\u00f1a t\u00d8nh S\u00acn La l\u00b5 14 210km2. H\u00e1i s\u00e8 d\u00a9n c\u00f1a t\u00d8nh S\u00acn La b\u00bbng bao nhi\u00aau ph\u00c7n tr\u00a8m s\u00e8 d\u00a9n c\u00f1a H\u00b5 N\u00e9i ? b) N\u00d5u mu\u00e8n t\u00a8ng m\u00cbt \u00ae\u00e9 d\u00a9n s\u00e8 c\u00f1a S\u00acn La l\u00aan 100 ng\u00f0\u00eai\/km2 th\u00d7 s\u00e8 d\u00a9n c\u00f1a t\u00d8nh S\u00acn La ph\u00b6i t\u00a8ng th\u00aam bao nhi\u00aau ng\u00f0\u00eai ? (H\u00e4c sinh \u00ae\u00f0\u00eec d\u00efng m\u00b8y t\u00ddnh b\u00e1 t\u00f3i khi gi\u00b6i b\u00b5i t\u00cbp n\u00b5y) 180","CM YK Tr.181 M\u00f4c L\u00f4c Ch\u00f0\u00acng m\u00e9t Ch\u00f0\u00acng hai S\u00e8 th\u00cbp ph\u00a9n. C\u00b8c ph\u00d0p t\u00ddnh v\u00edi \u00a4N t\u00cbp v\u00b5 b\u00e6 sung v\u00d2 ph\u00a9n s\u00e8. s\u00e8 th\u00cbp ph\u00a9n gi\u00b6i to\u00b8n li\u00aan quan \u00ae\u00d5n t\u00d8 l\u00d6. b\u00b6ng \u00ae\u00acn v\u00de \u00aeo di\u00d6n t\u00ddch Trang I - S\u00e8 th\u00cbp ph\u00a9n Trang \u00a4n t\u00cbp : Kh\u00b8i ni\u00d6m v\u00d2 ph\u00a9n s\u00e8 . . . . . . . . . . . . . . . . . .3 \u00a4n t\u00cbp : T\u00ddnh ch\u00cat c\u00ac b\u00b6n c\u00f1a ph\u00a9n s\u00e8 . . . . . . . . . .5 Kh\u00b8i ni\u00d6m s\u00e8 th\u00cbp ph\u00a9n . . . . . . . . . . . . . . . . . . . . . . . .33 \u00a4n t\u00cbp : So s\u00b8nh hai ph\u00a9n s\u00e8 . . . . . . . . . . . . . . . . . . .6 \u00a4n t\u00cbp : So s\u00b8nh hai ph\u00a9n s\u00e8 (ti\u00d5p theo) . . . . . . . . .7 Kh\u00b8i ni\u00d6m s\u00e8 th\u00cbp ph\u00a9n (ti\u00d5p theo) . . . . . . . . . . . . .36 Ph\u00a9n s\u00e8 th\u00cbp ph\u00a9n . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 H\u00b5ng c\u00f1a s\u00e8 th\u00cbp ph\u00a9n. \u00a7\u00e4c, vi\u00d5t s\u00e8 th\u00cbp ph\u00a9n . . . .37 \u00a4n t\u00cbp : Ph\u00d0p c\u00e9ng v\u00b5 ph\u00d0p tr\u00f5 hai ph\u00a9n s\u00e8 . . . . . . .10 \u00a4n t\u00cbp : Ph\u00d0p nh\u00a9n v\u00b5 ph\u00d0p chia hai ph\u00a9n s\u00e8 . . . . . .11 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 H\u00e7n s\u00e8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 H\u00e7n s\u00e8 (ti\u00d5p theo) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 S\u00e8 th\u00cbp ph\u00a9n b\u00bbng nhau . . . . . . . . . . . . . . . . . . . . . . .40 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 So s\u00b8nh hai s\u00e8 th\u00cbp ph\u00a9n . . . . . . . . . . . . . . . . . . . . . 41 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 \u00a4n t\u00cbp v\u00d2 gi\u00b6i to\u00b8n . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 \u00a4n t\u00cbp v\u00b5 b\u00e6 sung v\u00d2 gi\u00b6i to\u00b8n . . . . . . . . . . . . . . . . .18 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 \u00a4n t\u00cbp v\u00b5 b\u00e6 sung v\u00d2 gi\u00b6i to\u00b8n (ti\u00d5p theo) . . . . . .20 Vi\u00d5t c\u00b8c s\u00e8 \u00aeo \u00ae\u00e9 d\u00b5i d\u00f0\u00edi d\u00b9ng s\u00e8 th\u00cbp ph\u00a9n . . . 44 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 \u00a4n t\u00cbp : B\u00b6ng \u00ae\u00acn v\u00de \u00aeo \u00ae\u00e9 d\u00b5i . . . . . . . . . . . . . . . . .22 \u00a4n t\u00cbp : B\u00b6ng \u00ae\u00acn v\u00de \u00aeo kh\u00e8i l\u00f0\u00eeng . . . . . . . . . . . . .23 Vi\u00d5t c\u00b8c s\u00e8 \u00aeo kh\u00e8i l\u00f0\u00eeng d\u00f0\u00edi d\u00b9ng s\u00e8 th\u00cbp ph\u00a9n . .45 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 \u00a7\u00d2-ca-m\u00d0t vu\u00abng. H\u00d0c-t\u00ab-m\u00d0t vu\u00abng . . . . . . . . . . .25 Vi\u00d5t c\u00b8c s\u00e8 \u00aeo di\u00d6n t\u00ddch d\u00f0\u00edi d\u00b9ng s\u00e8 th\u00cbp ph\u00a9n . . . 46 Mi-li-m\u00d0t vu\u00abng. B\u00b6ng \u00ae\u00acn v\u00de \u00aeo di\u00d6n t\u00ddch . . . . . . .27 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 H\u00d0c-ta . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 II - C\u00b8c ph\u00d0p t\u00ddnh v\u00edi s\u00e8 th\u00cbp ph\u00a9n 1. Ph\u00d0p c\u00e9ng C\u00e9ng hai s\u00e8 th\u00cbp ph\u00a9n . . . . . . . . . . . . . . . . . . . . . . . . .49 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 T\u00e6ng nhi\u00d2u s\u00e8 th\u00cbp ph\u00a9n . . . . . . . . . . . . . . . . . . . . . . 51 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52 2. Ph\u00d0p tr\u00f5 Tr\u00f5 hai s\u00e8 th\u00cbp ph\u00a9n . . . . . . . . . . . . . . . . . . . . . . . . . .53 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 3. Ph\u00d0p nh\u00a9n Nh\u00a9n m\u00e9t s\u00e8 th\u00cbp ph\u00a9n v\u00edi m\u00e9t s\u00e8 t\u00f9 nhi\u00aan . . . . .55 Nh\u00a9n m\u00e9t s\u00e8 th\u00cbp ph\u00a9n v\u00edi 10, 100, 1000, ... . . 57 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58 Nh\u00a9n m\u00e9t s\u00e8 th\u00cbp ph\u00a9n v\u00edi m\u00e9t s\u00e8 th\u00cbp ph\u00a9n . . .58 181","CM YK Tr.182 Trang Ch\u00f0\u00acng ba Trang Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 H\u00d7nh h\u00e4c Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61 H\u00d7nh tam gi\u00b8c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62 Di\u00d6n t\u00ddch h\u00d7nh tam gi\u00b8c . . . . . . . . . . . . . . . . . . . . . . . .87 4. Ph\u00d0p chia Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88 Chia m\u00e9t s\u00e8 th\u00cbp ph\u00a9n cho m\u00e9t s\u00e8 t\u00f9 nhi\u00aan . . . . .63 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89 Chia m\u00e9t s\u00e8 th\u00cbp ph\u00a9n cho 10, 100, 1000, . . . . . .65 Chia m\u00e9t s\u00e8 t\u00f9 nhi\u00aan cho m\u00e9t s\u00e8 t\u00f9 nhi\u00aan m\u00b5 H\u00d7nh thang . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91 th\u00f0\u00acng t\u00d7m \u00ae\u00f0\u00eec l\u00b5 m\u00e9t s\u00e8 th\u00cbp ph\u00a9n . . . . . . . . . . .67 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68 Di\u00d6n t\u00ddch h\u00d7nh thang . . . . . . . . . . . . . . . . . . . . . . . . . . .93 Chia m\u00e9t s\u00e8 t\u00f9 nhi\u00aan cho m\u00e9t s\u00e8 th\u00cbp ph\u00a9n . . . . .69 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94 Chia m\u00e9t s\u00e8 th\u00cbp ph\u00a9n cho m\u00e9t s\u00e8 th\u00cbp ph\u00a9n . . .71 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73 H\u00d7nh tr\u00dfn. \u00a7\u00f0\u00eang tr\u00dfn . . . . . . . . . . . . . . . . . . . . . . . . . .96 T\u00d8 s\u00e8 ph\u00c7n tr\u00a8m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73 Gi\u00b6i to\u00b8n v\u00d2 t\u00d8 s\u00e8 ph\u00c7n tr\u00a8m . . . . . . . . . . . . . . . . . . . .75 Chu vi h\u00d7nh tr\u00dfn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76 Gi\u00b6i to\u00b8n v\u00d2 t\u00d8 s\u00e8 ph\u00c7n tr\u00a8m (ti\u00d5p theo) . . . . . . . . .76 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77 Gi\u00b6i to\u00b8n v\u00d2 t\u00d8 s\u00e8 ph\u00c7n tr\u00a8m (ti\u00d5p theo) . . . . . . . . .78 Di\u00d6n t\u00ddch h\u00d7nh tr\u00dfn . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80 Gi\u00edi thi\u00d6u m\u00b8y t\u00ddnh b\u00e1 t\u00f3i . . . . . . . . . . . . . . . . . . . . . .81 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100 S\u00f6 d\u00f4ng m\u00b8y t\u00ddnh b\u00e1 t\u00f3i \u00ae\u00d3 gi\u00b6i to\u00b8n v\u00d2 t\u00d8 s\u00e8 ph\u00c7n tr\u00a8m . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82 Gi\u00edi thi\u00d6u bi\u00d3u \u00ae\u00e5 h\u00d7nh qu\u00b9t . . . . . . . . . . . . . . . . . . .101 Luy\u00d6n t\u00cbp v\u00d2 t\u00ddnh di\u00d6n t\u00ddch . . . . . . . . . . . . . . . . . . . .103 Luy\u00d6n t\u00cbp v\u00d2 t\u00ddnh di\u00d6n t\u00ddch (ti\u00d5p theo) . . . . . . . . .104 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106 H\u00d7nh h\u00e9p ch\u00f7 nh\u00cbt. H\u00d7nh l\u00cbp ph\u00f0\u00acng . . . . . . . . . .107 Di\u00d6n t\u00ddch xung quanh v\u00b5 di\u00d6n t\u00ddch to\u00b5n ph\u00c7n c\u00f1a h\u00d7nh h\u00e9p ch\u00f7 nh\u00cbt . . . . . . . . . . . . . . . . . . . . . . . .109 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110 Di\u00d6n t\u00ddch xung quanh v\u00b5 di\u00d6n t\u00ddch to\u00b5n ph\u00c7n c\u00f1a h\u00d7nh l\u00cbp ph\u00f0\u00acng . . . . . . . . . . . . . . . . . . . . . . . . . .111 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113 Th\u00d3 t\u00ddch c\u00f1a m\u00e9t h\u00d7nh . . . . . . . . . . . . . . . . . . . . . . . . .114 X\u00a8ng-ti-m\u00d0t kh\u00e8i. \u00a7\u00d2-xi-m\u00d0t kh\u00e8i . . . . . . . . . . . . . .116 M\u00d0t kh\u00e8i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119 Th\u00d3 t\u00ddch h\u00d7nh h\u00e9p ch\u00f7 nh\u00cbt . . . . . . . . . . . . . . . . . . . .120 Th\u00d3 t\u00ddch h\u00d7nh l\u00cbp ph\u00f0\u00acng . . . . . . . . . . . . . . . . . . . . .122 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124 Gi\u00edi thi\u00d6u h\u00d7nh tr\u00f4. Gi\u00edi thi\u00d6u h\u00d7nh c\u00c7u . . . . . . . . .125 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128 182","Ch\u00f0\u00acng b\u00e8n II - \u00a4n t\u00cbp v\u00d2 c\u00b8c ph\u00d0p t\u00ddnh v\u00edi c\u00b8c s\u00e8 t\u00f9 nhi\u00aan, ph\u00a9n s\u00e8, S\u00e8 \u00aeo th\u00eai gian. To\u00b8n chuy\u00d3n \u00ae\u00e9ng \u00ae\u00d2u s\u00e8 th\u00cbp ph\u00a9n I - S\u00e8 \u00aeo th\u00eai gian Trang Trang Ph\u00d0p c\u00e9ng . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .158 B\u00b6ng \u00ae\u00acn v\u00de \u00aeo th\u00eai gian . . . . . . . . . . . . . . . . . . . . . .129 Ph\u00d0p tr\u00f5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .159 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .160 C\u00e9ng s\u00e8 \u00aeo th\u00eai gian . . . . . . . . . . . . . . . . . . . . . . . . .131 Ph\u00d0p nh\u00a9n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .161 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .162 Tr\u00f5 s\u00e8 \u00aeo th\u00eai gian . . . . . . . . . . . . . . . . . . . . . . . . . . .132 Ph\u00d0p chia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .164 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .165 \u00a4n t\u00cbp v\u00d2 c\u00b8c ph\u00d0p t\u00ddnh v\u00edi s\u00e8 \u00aeo th\u00eai gian . . . .165 Nh\u00a9n s\u00e8 \u00aeo th\u00eai gian v\u00edi m\u00e9t s\u00e8 . . . . . . . . . . . . . . .135 III - \u00a4n t\u00cbp v\u00d2 h\u00d7nh h\u00e4c Chia s\u00e8 \u00aeo th\u00eai gian cho m\u00e9t s\u00e8 . . . . . . . . . . . . . . .136 \u00a4n t\u00cbp v\u00d2 t\u00ddnh chu vi, di\u00d6n t\u00ddch m\u00e9t s\u00e8 h\u00d7nh . . . .166 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .167 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137 \u00a4n t\u00cbp v\u00d2 t\u00ddnh di\u00d6n t\u00ddch, th\u00d3 t\u00ddch m\u00e9t s\u00e8 h\u00d7nh . .168 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .169 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . .169 II - V\u00cbn t\u00e8c, qu\u00b7ng \u00ae\u00f0\u00eang, th\u00eai gian IV - \u00a4n t\u00cbp v\u00d2 gi\u00b6i to\u00b8n V\u00cbn t\u00e8c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138 M\u00e9t s\u00e8 d\u00b9ng b\u00b5i to\u00b8n \u00ae\u00b7 h\u00e4c . . . . . . . . . . . . . . . . . .170 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .139 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .171 Qu\u00b7ng \u00ae\u00f0\u00eang . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .171 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .172 Th\u00eai gian . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142 \u00a4n t\u00cbp v\u00d2 bi\u00d3u \u00ae\u00e5 . . . . . . . . . . . . . . . . . . . . . . . . . . . .173 Luy\u00d6n t\u00cbp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . .175 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . .144 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . .176 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . .144 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . .176 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . .177 Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . .178 Ch\u00f0\u00acng n\u00a8m Luy\u00d6n t\u00cbp chung . . . . . . . . . . . . . . . . . . . . . . . . . . . . .179 \u00a4n t\u00cbp I - \u00a4n t\u00cbp v\u00d2 s\u00e8 t\u00f9 nhi\u00aan, ph\u00a9n s\u00e8, s\u00e8 th\u00cbp ph\u00a9n, s\u00e8 \u00aeo \u00ae\u00b9i l\u00f0\u00eeng \u00a4n t\u00cbp v\u00d2 s\u00e8 t\u00f9 nhi\u00aan . . . . . . . . . . . . . . . . . . . . . . . .147 \u00a4n t\u00cbp v\u00d2 ph\u00a9n s\u00e8 . . . . . . . . . . . . . . . . . . . . . . . . . . .148 \u00a4n t\u00cbp v\u00d2 ph\u00a9n s\u00e8 (ti\u00d5p theo) . . . . . . . . . . . . . . . . .149 \u00a4n t\u00cbp v\u00d2 s\u00e8 th\u00cbp ph\u00a9n . . . . . . . . . . . . . . . . . . . . . . .150 \u00a4n t\u00cbp v\u00d2 s\u00e8 th\u00cbp ph\u00a9n (ti\u00d5p theo) . . . . . . . . . . . .151 \u00a4n t\u00cbp v\u00d2 \u00aeo \u00ae\u00e9 d\u00b5i v\u00b5 \u00aeo kh\u00e8i l\u00f0\u00eeng . . . . . . . . .152 \u00a4n t\u00cbp v\u00d2 \u00aeo \u00ae\u00e9 d\u00b5i v\u00b5 \u00aeo kh\u00e8i l\u00f0\u00eeng (ti\u00d5p theo) . .153 \u00a4n t\u00cbp v\u00d2 \u00aeo di\u00d6n t\u00ddch . . . . . . . . . . . . . . . . . . . . . . . .154 \u00a4n t\u00cbp v\u00d2 \u00aeo th\u00d3 t\u00ddch . . . . . . . . . . . . . . . . . . . . . . . . .155 \u00a4n t\u00cbp v\u00d2 \u00aeo di\u00d6n t\u00ddch v\u00b5 \u00aeo th\u00d3 t\u00ddch (ti\u00d5p theo) . . .155 \u00a4n t\u00cbp v\u00d2 \u00aeo th\u00eai gian . . . . . . . . . . . . . . . . . . . . . . . .156 183","CM YK Tr.184 Ch\u00deu tr\u00b8ch nhi\u00d6m xu\u00cat b\u00b6n : Ch\u00f1 t\u00dech H\u00e9i \u00ae\u00e5ng Th\u00b5nh vi\u00aan ki\u00aam T\u00e6ng Gi\u00b8m \u00ae\u00e8c NG\u00f0 T NG\u00a4 TR\u00c7N \u00b8I Ph\u00e3 T\u00e6ng Gi\u00b8m \u00ae\u00e8c ki\u00aam T\u00e6ng bi\u00aan t\u00cbp GS.TS v\u00f2 v\u00a8n h\u00efng Bi\u00aan t\u00cbp l\u00c7n \u00ae\u00c7u : v\u00f2 v\u00a8n d\u00f0\u00acng - nguy\u00d4n th\u00de b\u00d7nh Bi\u00aan t\u00cbp t\u00b8i b\u00b6n : v\u00f2 minh h\u00b6i S\u00f6a b\u00b6n in : v\u00f2 minh h\u00b6i Bi\u00aan t\u00cbp m\u00dc thu\u00cbt : T\u00b5o thanh huy\u00d2n Thi\u00d5t k\u00d5 s\u00b8ch : phan h\u00f0\u00acng Tr\u00d7nh b\u00b5y b\u00d7a : b\u00efi quang tu\u00can Minh ho\u00b9 : nguy\u00d4n h\u00e5ng vy - v\u00f2 quang vinh Ch\u00d5 b\u00b6n : c\u00abng ty c\u00e6 ph\u00c7n m\u00dc thu\u00cbt v\u00b5 truy\u00d2n th\u00abng to\u00b8n 5 M\u00b7 s\u00e8 : 1H503T4 S\u00e8 \u00ae\u00a8ng k\u00dd KHXB : 01 - 2014\/CXB\/97 - 1062\/GD. In ............. cu\u00e8n, kh\u00e6 17 x 24 cm. In t\u00b9i C\u00abng ti c\u00e6 ph\u00c7n in ................... In xong v\u00b5 n\u00e9p l\u00f0u chi\u00d3u th\u00b8ng ... n\u00a8m 2014. 184",""]