Math2

2. Write the smallest and the greatest 3-digit numbers using the given digits. Greatest. Smallest a.4,8,5 b. s,9,2 c.6,7,! d. 8,4,0 a Q(Q E-ArAD!A'+g,H4S lrlayg Objective: This game provides the opportunity to create, write, and read numoers. Hundreds Materials required: Number Tens cube, paper, and pencil Ones Method: Step 1: Make groups of two students each. Each student will draw three horizontal lines on a piece of paper. Each line represents a place value. First row represents the hundreds, second row represents the tens and third row reoresents the ones, Step 2: Choose a goal-make the greatest or the smallest 3-digit number'. Once you decide, start rolling the number cube. Step 3: Each player rolls the number cube three times and writes the digits in the respective rows to make the largest or the smallest number. Example: lf a student rolls 1 and the goal is to create the largest number, he/ she should write the number in the ones place. Step 4: This game continues until both the players have filled in all the columns. The one who achieves the goal wins that round.

Find the place value qf the underlined digits. a. 456 b. 987 Write the standard or short form of the following numbers. a. 400+50+5 = b. 900+5 = Write the expanded form of the following numbers. a. 183: b. 785: c. 809: d. 980: Form the largest and the smallest 3-digit numbers using the digits 9, 0, and 3. Smallest Write the given numbers in ascending and descending order. 856, 980, 824, 999, 111, 880 Ascending order: Descending order: iF Vikram has 555 sea shells. Virat has777 sea shells. Who has more number of sea shells? 868 marbles are placed in a red bag.400 marbles are placed in a blue bag. Which bag has more number of marbles, and how many more? OO OO -l t92l:f

WonrsHeEr 1. Fill in the boxes. A na.496=Anrnar\"; c+, (r) tens + ( ur) ones b.592=Anrnar\"i o+, (Ar) ntens + I u) ones A n1u) ones c.664=\\,A/ nrnar\";+o' 'u)'\"nt+ d. 999 = A hrnor\"d, * |,\"n, * | on\", \\,/ \\,/ 2. Colour the truck blue that has the smallest number in each row. a'.'aa^'d \",aq,{-a-,.a'|, 4\"aF-4;.la -t-- -l-- --t- a'b f\"ialstt| f\";als'\"z\"z\"-I'a' E\"al -1a08'I 3. Colour the leaf green that has the la rgest number in each row. t'st2 2,- J 266i I4A- ^,V\\-1 2_ ,rt all ,_\"/ .\\ I>'_a,^z--'z z_ '/. \\ il I ll a'D. 1.rg 2- THTHHII;HTII ! BTTITgTEIEgT tt tt tttHHIHHFt.lt Ir. _ll. E ir !trtEE rttt

!p !e 9r9 1. Add. One has been done for You. .. EEI A. EE 24 9 Addend EEb. zz P+ 3 Addend +35 51 2 Addend 2. Subtract. One has been done for you. EE =' EE a. EEl 56 34Mlnueno44 37 -i-ft!-35:---^-r-lr-SDuibffterraehnecned t-_-_1 3. Subtract and check Your The result of oddition is su btraction using addition. lled the sum, ond the result of subtrqction is colled the ET ET difference.

123 4 6 7 6 9 10 11 t2 13 t4 15 1.6 t7 18 1q 20 2L 22 23 25 26 28 )o 30 31 32 33 38 39 40 4L 42 43 48 49 50 51 52 53 b4 b5 bo ot 58 59 OU 61 62 63 71 72 73 74 7s 76 77 68 69 70 81 82 83 84 85 86 87 78 79 80 91 92 93 94 95 96 97 88 89 90 98 99 100 Numbers can be mentally added with the help of the above table' [Hint: Start from first addend and move steps vertically downwards eoual to the number of tens in the second addend. Then move steps towards the right equal to the number of ones in the second addend' You will reach the sum.l Example L. Add 34 + 23. Start from 34.23 has 2 tens and 3 ones. So move 2 steps verticallv downwards' You will reach 54. NoW move the number of ones in the second addend, that is,3 steps towards the right. You will reach 57.34+20=54,54 + 3 = 57 (The same is shown in the table above.) Example 2. Add 1-8 + 41. Start from 18 and move 4 steps vertically downwards. You will reach 58. Now, move one step towards the right' You will reach 59. 18+40=58,58+1=59 Exa m ple 3. Add 52 + 36. Start from 52 and move 3 steps vertically downwards' You will reach 82. Move six steps towards the right. You will reach 88. +6=88 &-52+30 =82,82 l?T

l Addition- Adding 3-digit Number with a 2-digit Number Without RegrouPing rEEIExample: Add 245 and 53' 5 Step L: Addtheones.5+3=8ones Step 2: Addthetens.4+5=9tens 3 Step 3: Add the hundreds. 2 + O = 2 hundreds a8 Thus, 245 + 53 = 298 With RegrouPing rEEIExample L. Add 639 and 53. ooe Steo 1: Add the ones. 9 + 3 = t2ones = 1 ten + 2 ones 9 Write 2 in the ones column and carry over + 3 1 ten to the tens column. o Step 2: Addthetens. 3 +5 + 1 (carryover) =9tens z Step 3: Add the hundreds' 6 + 0 = 6 hundreds Thus,539 + 53 = 692 rErExample 2. Add727 and 89. Step 1: Add the ones. 7 +9 = l6ones = lten + 6 ones @t @z 7 Write 6 in the ones column and carry over +8 L ten to the tens column. 9 Step 2: Add the tens. dIo 2 + 8 + !(carry over) = 11 tens =lhundred+1ten Carry over t hundred to the hundreds column' Steo 3: Add the hundreds. 7 + 0 + 1 (carry over) ffi_Fl Thus, 727 +89=816 = 8 hundreds

1. Add the following: . b TEEI . EE 05 a. rEE 93 08 + 6L 23 t7 t. 45 32 83 48 o h TIIE 59 29 EEI 77 60 92 39 t. K TEEI t. 60 785 48 +47 2. Match the following: . 309+60 a.234+32 .684+82 b.326+43 . 213+53 c. 521 +52 . 821+42 d.689+77 .549+24 e. 780 + 83

I-) Addirrg 3-digit Number with a 3-digit Number Without RegrouPing Example 2: Add 823 Example 1: Add 165 and224' and 165. fE[l StePl: Add the ones. rEET 5+4=9ones 988 Step 2: Add the tens. Thus, 823 + 165 = 988 't 6+2=8tens 38 Step 3: Add the hundreds. t+2=3hundreds Thus, 165 + 224 = 389 With Regrouping rErExample: Add 286 and 358. Step 1: Add the ones. oz @s 6 6 + 8 = 14 ones = l- ten +4 ones Write 4 in the ones column and carry over 8 1 ten to the tens column' 644 Step 2: Add the tens. 8 + 5 + 1(carrY over) = 14 tens =lhundred+4tens Write 4 in the tens column and carry over t hundred to the hundreds column' Step 3: Add the hundreds. 2+3+1'(carrYover) = 6 hundreds Thus, 286 + 358 = 644

L. Add the following: o. . rElil 382 a. 325 + 5 49 +484 425 f. +313 E EET 4t7 d. rEE 108 426 +287 +459 +538 h. ttEEt i. rEEl 0 828 728 +155 805 +209 +156 I lf,nEt t TEEI 228 ITEEI 575 +556 +346 835 . T5T3EretI +159 n 1 Efl 2. Fill in the boxes. 4fls 6U5 rEreT +310 f. 326 e. rEEl 806 826 +f-l s z 1E4 Ia o +f-ls 6 488 d. []z 4 682 e 8[]

There are 256 toYs and 235 T-shirts in a store. How manY items are there in all? To find the total number of rEritems, we add 256 and 235' z@s 6 Step 1: Add the ones. 6+5 = 11 ones=1ten+1one Write 1in the ones column and carry over 23 5 1 ten to the tens column. 491 Step 2: Add the tens. 5 + 3 + 1 (carry over) = 9 tens Step 3: Add the hundreds. 2+2=4hundreds Thus, there are 491 items in the store. !I3a Kings Bridge School organised a 6ul1u13l programme to celebrate the Independence Day. They invited 546 Parents and 64 PTA members to attend the programme. How manY PeoPle were invited to the Programme? Present five lines on the topic 'l love my country' in Your class'

L, In a pond, there are 414 blue fish and 265 gold fish. How many fish are there in all? Answer: 2. Swapan scored 456 runs in the first match and 274 runs in the second match. How many runs did he score in all? Answer: 3. A balloon seller has 352 red balloons and 252 green balloons. How many balloons does he have in all? Answer: 4. In a library, there are 406 books of English, 43L books of Hindi, and 142 books of mathematics. Help Ms Kannan, the librarian, count the total number of books. Answer:

I +; Subtraction Subtracting 2-digit Number from a 3-digit Number Without RegrouPing Example: Subtract 45 from 458. 368-43 = b. 746-35 = rEEI -'ffiStep l-: Subtract the ones. 5 6 8-5=3ones 978-65= 4 5 Step 2: Subtract the tens. 5-4=1ten 4I5 Step 3: Subtractthe hundreds. 4-O=4hundreds Thus. 458 - 45 = 413 With Regrouping Example: Subtract 95 from 362. rEE\"zIu/t\\z u6hB 6 Step 1: Subtract the ones. Since 5 cannot be subtracted from 2, borrow l ten from the tens column and regroup 2 ones into 12 ones. 267 Now, 12 ones - 5 ones = 7 ones Step 2: Subtract the tens. Since l ten is borrowed, 5 tens are left in the tens column. g cannot be subtracted from 5. Borrow t hundred from the hundreds column and regroup 5 tens into 15 tens. Now, 15tens-9tens= 6 tens Step 3: Subtract the hundreds. Since t hundred is borrowed, 2 hundreds are left. Thus, 362 - 95 = 267

Subtract the following: b EE . rElil 34 6 o. rElil 2 24 65 43 43 f rElil 32 ITEET 2 1, 2 1. 24 h TEE rEE 43 2t z 1, 43 24 J. ItEtil 8T k rnE EreI J0 46 6 5 1. 3 Subtracting 3-digit Number from a 3-digit Number Without Regrouping Examole : Subtract 1.42 from 7 65. lINE Step L: Subtract the ones. 6 5 5-2=3ones T42 Step 2: Subtract the tens. oaJ 6-4=2tens Step 3: Subtract the hundreds. Thus,765 - 142 = 623 7 -I=6 hundreds

I With Regrouping Example 1: Subtract 419 from 695. T.?4 s'ie' L: .Subtract the ones. zIo Since 9 cannot be subtracted from 5, regroup 5 ones into 15 ones by borrowing l ten from the tens column' l-5-9=6ones Step 2: Subtract the tens. Since 1 ten is borrowed, 8 tens are left. 8-1=7tens SteP 3: Subtractthe hundreds. 6 - 4 = 2hundreds. Thus, 695 - 419 = 276 rEEExample 2: Subtract 389 from 854. Step 1: Subtract the ones. @8 @s @4 Since 9 cannot be subtracted from 4, regroup 4 ones into 14 ones by borrowing 465 l ten from the tens column' 14-9 = 5 ones Steo 2: Subtract the tens. Since l ten is borrowed,4 tens are left' 8 cannot be subtracted from 4. Borrow t hundred from the hundreds column and regroup 4 tens into 14 tens' 14 - 8 = 6 tens Step 3: Subtract the hundreds' Since L hundred is borrowed by the tens column, 7 hundreds are left. 7-3=4hundreds Thus, 854 - 389 = 455

t. Subtract the following: b' rnE 4t4 807 a. IfriylE8Es 507 374 -t7L C TEEI f. d. rElil 850 8 3 1, 275 929 498 '1, 9 0 rElil2. Arrange in columns and subtract. rnlil a. Subtract L49 from 279. rEEb. Subtract 225 lrom 498. c. Subtract 278 from 389. 3. Match the following: . 252 . 380 a. 746-239 . 507 .99 b. 474-762 c. 563 - 235 . 197 d.692-49s . 328 e. 870-490 f. 398 - 299

I Rishi has 255 PartY caPs and Preeti has 138 party caps. Who has more and how many more PartY caPs? Subtract 138 from 256' 118 Step 1: Subtract the ones' 8 cannot be subtracted from 6. Regroup 6 ones into 16 ones by borrowing l ten from the tens column. 16-8=8ones SteP 2: Subtract the tens. Since 1 ten is borrowed by the ones column, 4tensareleft.4-3=1ten Steo 3: Subtract the hundreds' 2-!=lhundred Thus, Rishi has 118 more party caps than Preeti. Solve the word Problems' 1. In a sports meet,659 students participated and 245 ofthem were boys. Find the number of girls who participated in the meet' 2. Reena's height is 139 cm. Mohit is 45 cm shorter than her. Find the height of Mohit. -frffi

3. A school was open for 298 days in a year. Find the total number of holidays in a year. (Hint: l year = 365 days) IyEI James wanted to decorate his home with balloons on Christmas eve. He went to a shop and purchased 350 balloons. After coming home, he counted the number of balloons and found them to be 415. He realised that the shopkeeper had given him extra balloons by mistake. James immediately went back to the shop and returned the extra balloons. How many balloons did he return? What value does James depict? Write a short paragraph on the significance of this value. Placement of Numbers Numbers must always be placed in the correct column and then added or subtracted. We should always fill the columns starting from the ones column. How to olace 306 + 3? I How to place 354 + 32? .H it::',r I ffiffijt i{ 6 30 '+ 54 35 4 +3 32 32 r_=3 l I I I 1La*.-l l I I I

How to place 569 - 6? rEEHow to place 775 - 34? 5. ; f, 7 7 6' t- 3 4 54 I 1. Place numbers in the correct columns and solve. b. 356 + 26 c. 987 -32 d.872-s7 rEEI rnEla.754+42 TIEE <po@r@ Tangram is an ancient Chinese puzzle. lt has seven geometrical pieces. Solve the sums first and colour the pieces as suggested. Numbers in the Colour 415 440 232 hundreds place +218 -209 +124 Red 5 Purple 768 A Green 259 -'t 21 ; Blue + 228 '7 Brown

illoths Around Us When you go to the market with your parents, try to calculate the total money to be paid for all the items purchased. After you calculate, you can check if it is same as the one that shopkeeper collects. Let us play a short game to learn addition and subtraction better. Ta ke a printed book. lt has page numbers on every page. Open the book randomly and see the page number on the right side. Do not consider any 1-digit number. Note down the last 2 digits of the page number. Close the book. lt is then your friend's turn to play. He opens a page randomly. Note down the last 2 digits again. Repeat this for 5 times each and add all the numbers for each one. Find out whose total is more. Subtract the smaller total from the bigger total. D[ggg$ Ilnsr a_u4ry Addition and Subtraction Objective: Mental maths (addition and subtraction) Materials required: Die, counters, paper, pencil and eraser Method: Two to four students can play at a time (as pairs). Write START and then write numbers from 1to 200 and FINISH on a paper. Take turns for rolling the die and move the counter as many number of places as the digit shown by the top surface of the die. For example, 2 indicates 2 places and 4 means 4 places. Follow directions written on the paper and on each turn, add or subtract that number on the paper. For example, if we have to jump 3 steps from 6, then we reach at 9, that is, 3 + 5. Directions: Skip a turn on 2, jump 3 steps on 6, miss your turn on l-0. Continue until both the persons reach the end. The player, who reach the FIN ISH point first, wins.

A' 8 2L4+222 = NUMBER PUZZLE 10 352 + 34L = Across 12 422+32t = T 23L + 341' = 13 13 + 1,1 3 502 + 303 = 6 624+3t3 = 9 5I2+224 = TI 432+I14 = I4 623 +203 = 15 L54 + 214 = lo 326 + 13L = Down 541, + 321 = I21, +2OO 235 + 1L4 5L3 +224 = Ftt Mt-'| v Proiect '!:) - -.- @qEEE@Eg@E6@EEg Eo@EErtlrEE n Tlo --lGrrulp.-----

Write the missing n u m be rs. One has been done for you. Addition Wheel Subtraction Wheel A school library has 543 coursebooks and 341 storybooks. How many ! books are there in all? A shopkeeper has 287 books. lf he sells 192 books on a particular day, how many books are left with him? A florist has 239 recj roses and the rest are orchids. lf there are 600 flowers in all. how rnany orchids are there? ')1, rte true or false. ,r. 123 + 321. = 444: b.642-320=32I: c. 578 + 382 = 75O: d. 803 - 545 = 258: I ill in the blanks wif h '+' or'-'. a. 465 169 =365 b. 555 20O = 755 c. 999 1'99 = e;OO d. r.r 222= 333 oo Ft -dB-

Fill in the blanks given below with the correct terms' Find these ierms in the given grid, and colour them with different colours. Find Mg Terrn A T zWP F U LMA D S XcAoY Ka z DBT 5 UM NJ E tl X z P W o G A U s NW L K AMao A E I DG BAcTADsNT S U BT RAH E NDA I D G o U N A M Y aW JR HToTA La ED cF F E R E N E 1. In addition, the numbers that are to be added are called 2. The resultant term in addition is or 3. The first term in subtraction is called 4. The second term in subtraction is called 5. The resultant term in subtraction is called

taote or J t 2 3 4 5 6 7 6 9 L0 11 12 13 t4 15 16 t7 18 t9 20 2t 22 23 24 25 26 27 28 29 30 Table of 4 -ffi L 2 3 4 ) 6 7 8 9 10 L1 T2 13 t4 15 l-o T7 18 19 20 2t 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 3t 38 39 40 Patterns in Tables Let us consider the multiolication table of 3. ft h6 9 15 lE, Put 3, 6, 9 in a group and 12, 15, 18 into another group. Observe the underlined digits in the ones place of both the groups. 2 comes before 3, -'!'!'5 comes before 5 and 8 comes before 9 when placed in the number strip.

eD Let us consider the multiplication table of 4. Observe that 4, 8, 2,6, and 0 repeat themselves in the next group' Given above are some interesting examples of patterns in numbers' Multiplication Facts Order Property of MultiPlication Even if the order of the numbers is changed in a multiplication sum, the oroduct remains the same. Example: Mohit arranged 5 rows of 5 eggs each in one tray and 5 rows of 6 eggs each in another traY. tr'E=@ 5 rows of 6 tr'E=@ 6x5=5x 6 'Ex tr tr tr ttrrSimilarly, @ ano @ @ @ano @ It is observed that on changing the order of the numbers, the product remains unchanged. This is called the order property of multiplication' Zer o P t operty of MultiPlication lf zero is multiplied by a number or a number is multiplied by zero, the product is alwaYs zero. ]#tr\"8=E tr'E=EFl

in the blanks and boxes. tr tr tr D tr \" ftar tr tr trb. tr tr tr trc, tr tro. tr 2. Match the ice cream scoop with their exact value on the g ice cream bowl. )) E I) E] ) E

Match the multiplicaton sentences and the products given on the caps, by colouring them alike. Multiplication Without Regrouping 2-iligit Number by a l-digit Number Example: Multiply 13 by 3. -\\ EEI Stepl: Multiptytheones. 3 3onesx3=9ones 3 Write 9 in the ones colu mn. [@ step z: Multiply the tens. 3 Ltenx3=3tens 3 Write 3 in the tens column. Thus, 13x3=39 -Ht----.

3-digit Number by a l-digit Number Exam ple: Multiply 124by2. Find fhe product of smollest 3-digit number 124 Step 1: Multiply the ones. x2 4onesx2=8ones 8 Write 8 in the ones column. Step 2: Multiply the tens. 2tensx2=4tens Write 4 in the tens column. 48 rEEI Step 3: Multiply the hundreds. 4 thundredx2=2hundreds xz Write 2 in the hundreds column. 24R Thus, L24 x2=248 .'IIE b.EEFind the product. ..EE d. EreT 54 23 1 0 EEI Elil Elil NEn. T1 L2 31 42 2 74 3 . -_d-8t -

2. Find the product. b TEE 44 rElila. 2 2 x3 C EE rEEI 2 3 3 2 AAoths Around Us Students of Class 2 of a school have decided to visit a nearby zoo for picnic along with their maths teacher. There are 60 students in all. The entry fee to the zoo is {1-0 for each child. Their teacher asked the class monitor to collect {10 from each student and give her the total amount collected. How much money has the monitor collected, including himself? Number of students = {Amount given by each child = Total amount collected = =( {Hence, the total money collected by the class monitor is

Muftipfication with Regrouping 1' 2-digit Number by a l-digit Number Regrouping Ones - Example: Multiply 16 by 4. EEI Step 1: Multiply the ones. Al 6 x 4 = 24ones = 2 tens + 4 ones 6 Write 4 in the ones column and 4 carry over 2 to the tens column. t6 4l Step 2: Multiply the tens. 1x4= 4tens Step 3: Add 4 tens and 2 tens. 4+2(carrYover) =51snt Thus,L6x4=64 rEr Regrouping Tens a Example: Multiply 42 by 4. Step 1: Multiply the ones. x4 4x2=8ones 168 Step 2: Multiply the tens. 4 x4=16tens=Lhundred and 6 tens Step 3: Carry over t hundred tothe hundreds column. Thus,42x4=168 Regrouping Ones and Tens Example: Multiply 74by 3. TTEET ri) Step 1: Multiply the ones. 4 x 3 = 12 ones 12ones-1ten+2ones X 3 Write 2 in the ones column and carry over aza 1 ten to the tens column.

Step 2: Multiply the tens. 3 x 7 = 2L tens 2L tens + l ten (carry over) -22tens=2hundreds+2tens Write 2 in the tens columns. Step 3: Carry over 2 huridreds to the hundreds columns. Thus,74x3=222 L Multiply. Elil EEI d.EE A' EE x9 x3 5 6 EE NE EU n. 23 24 24 4 4 3 J. ITEE k. rEE rrElil 4 76 74 9 x4 '. EElil n. \".ltEE p fEEl 4 8 I 2 53

TOtp sDctutrT Secret Code 15 l_6 27 18 60 12 42 o T, T s K a A V D 10 )+ 50 100 1 48 1 9 rPZGYoc f4 t+ 30 z) 28 32 I\\n 40 36 D THRMUJNEW Use the secret code to find the message. Example: Write M for 7 x ,Ifor 5 x 2 and so on in the empty boxes given below. E E EI til E lil E lil 7 83 85 65 7 E T E r T ELtl TL_-ll 445 3 93 E EE E E E E E 4 10 7 t 2 5 L E T E tl E T7 4 2 'J. 6 9 1 EE E EI E EE ril 4 2 15 4 5 7 x7 x4 E E T3 8 E5 EI E EE IIE EreI EEI 65 '1. 2 10 5 E E2 9 0 3 T 3

Multiplication --?.:fl.:._ By 10 When a number is multiplied by 10, we add one zero after the number to its right. Examples: 6x10=60; 19x10=190; l2xfg=129 f,l1o-l=n Er ,.[ltl=Fuol ,.n=[1so-] @'[Tol=[-] By 100 When a number is multiplied by L00, we add two zeros after the numberto its right. Examples: 2xIOO=2OO; 6x100=600; 9x100=900 lrl\"@=E T3*-l'[]=@ [-l\"@=@ [1,.@=@ A box has L5 lollipops, and there are 4 such boxes. How many lollipops are there in all? @ErT5 BANumber of lollipops in one box 4 ti; Number of boxes Tota I number of lollipops tl-o,----u-;lr _Thus, there are 60 lollipops in all. .Ht

]$ 1. Aditya and Saima went 2. lda, the witch, se nt Aditya and Saima to in sea rch of blueberries. the 4 corners of the ( They found 6 rows with 48 jungle to get 26 stones blueberries in each row. How many blueberries did both of f rom each corner. How them find in a ll? ma ny stones did theY @ L,'\"' !ucollect in a ll? .4t_l':r\\ #3. The cottage toP had 132 candies, chocolates, and lolliPoPs. lda, the witch, multiPlied these bY 3. How many of these were there in all then? 4. Tabby, lda's cat, h hunted mice. There dB were 51 mice on each tree. How many mice were there on 8 trees? On her birthday, Kaira wants to distribute clothes to orphans She wants to give 5 pairs of clothes to each child. She finds that there are 54 children in the orphanage. How many pairs of clothes does she need to buv? ------E

Dlh*us ltas A1,filfify Webby Nurnbers ' Complete the wheel by filling in the missing numbers. Also, colour the numbers as per the given instructions. Observe the wheel after completion. lt will help you in learning multiplication tables easily. Skip count in 10s -oQ^ {u^}u, o/ ez, (.t / 'R.* /' /J,.5\"-I'{>^.!Y ix\\ K{2' *i lJ^qr 7w*6,o/, ;dd zY Skip count in 5s

j\"\"'............................ l.i Complete the multiplication fact. i a. 4x!=- b.'4x10 c. 4x100 : i z.: Find the product. d i nE EEE rEb.EEl .a. it42623421 4 ixGx4x2x 4 i:tttlttttl : :.i Calculate and fill in the blanks. ia a. Four8s=- b. FiveTs=- c. Six3s=- I: d. 2times10=- e. 4times5=- f. lOtimes3= .: 4.i Match the following: i a. 4x8 o 45 i b. 5x5 . 32 i: c. 10 x 5 o 35 ,zIt.rln-.r--+-tr-thr-<r<e multiolicition- ::.:t::i\\ /[t/' O, . 5XY . ZV s-<u-rr\"mm\", 1-'t59 x 46 = 7632, nine d< ioits from 1 to 9 e. ZXIU .- JEvn nhIru^av.veoeenused -/I\\/abllll s. children :'-:i In a school auditorium, 25 onry once. :; can s.i.t in a row. lt there are 8 rows, ! ho* many children can sit in the :: auo,l.t.orlUm / : i e. Rishabh and his friend collected 43 JsletramI rpl,vs ervvar chI irrn! -v i red, blue, and yellow colours. How many stamps did oo; ttrey collect in all? oo ..#-

L. Magic with '9'. Fill in the blanks and write the corresponding letter in the adjacent boxes. One has been done for you. 9x5= 45 h 9x8 d 9x1 I 9x7 9x3 p 9x4 e -lla-[-f--''' 9x9 81 45 36 54 27 18 9x6 9x2 2. Match each balloon to the correct multiplication statement. Ps NWX\\ b'? laxzl--------------1 \\----- ErlE

Measurement is the act or process of measuring size, weight, or capacity of something. ryryt. Circle the longer fence. 2. Tick (/) the taller tree. 3. Measure the length 0 of the following using : matchsticks. b..C 4. Tick (r') the lighter thing and cross out (x) the heavier thing in each option. b. hi Jr,Eii a.

Length- Length is the distance from one end of an object to the other end. Non-standard Units of Length Earlier people used different parts of their body to measure length. Observe the following situations. ft a(tt ,\\\\g- -t The length of The length The length of The measure of the thumb to of one step the tip of the the foot from the little finger while walking middle finger to the longest toe the elbow is a to the heel is a cubit. These are called the non-standard units of length. The non-standard units vary from person to person. Use your body parts to measure the following lengths. L. Your desk spans 2. Your pencil box spans 3. Bulletin board cubits 4. Class corridor paces 5. Your classroom footspans 6. Your class window cubits Compare your answer with your friend's answer' What did you find? Are they same? No, this is because the hand and foot sizes may vary from person to Derson. To overcome this problem, a standard system of measurement was Ft introduced that used same units. -Hb-

Standard Unite of Length The standard unit of measuring length metre. The short form of metre is m. Example:The length of a cricket bat is L m. Larger lengths like length of a swimming pool or a yard is measured in metres. Lm 1 m can be divided into 100 smaller units called centimetres. 1m=100cm The short form of centimetre is cm. l- cm Example: The width of a finger is almost 1 cm. The length of a computer monitor or a book is measured in centimetres. Some lengths measured in centimetres are as follows. 1J*-, A scale or a ruler is used to measure lengths accurately in centimetres. A scale or a ruler shows both the inches and centimetres. A small ruler is 15 centimetres long. entimetres One centimetre can be further divided into millimetres. The short form of millimetre is mm. 1cm = 1\"0 mm inches Another unit for measuring length is kilometre. The short form of kilometre is km. 1km=1000m The length of the space between two points is called distance. Longer distances like distance between your school and home are measured in kilometres.

Measuring Length Using a Centimetre Scale To find the length of an object, put one end of the object to be measured at zero mark of the ruler. The marking at the other end gives the length of the object. The given pencil is 11 cm long. L. First guess and then use the centimetre ruler to find the following: a. Length ofyourfoot Your guess Exact measure b. Length ofyour notebook c. Length of your shoelace cm cm d. Length ofyour handspan cm cm cm cm cm cm 2. Write the correct length and its unit. a. Your pencil box = b. Yourfootspan = c. Your pencil = d. Your mathematics book = 3. Guess and put a tick mark (r') in the box next to the option which may be correct. A. BEI} b. .Jt!r'r4!.i-dc---- - D<2cm D<7cm D<2m D>4cm D>10cm D>3m

Weight Weight is the measure of the heaviness of an object. Standard Units of Weight At a goldsmith's shoP At a fruit shoP The fruit vendor weighs oranges in kilograms' You can see some commonly used weights in the picture alongside. The standard unit for measuring weight is kilogram. We use grams for lighter objects and kilograms for heavier objects' The short form of gram is g and kilogram is kg' 1kg=1699t \"Rich in vitamins, provide us strength. Taste delicious, make us grow in length. Keep us fit, Oh ! Fruits are my best friends.\" Sort the images in the order ofthe lightest to the heaviest and write the ordinal numbers in the space provided' Write the advantages of eating fruits everyday'

't/1. Guess and tick (r') the option which may be correct. a. L. u. 6Y tr<2kg n<20 g L--J <5g n <5kg >10k9 LJ >5og 'soc [-] nn>20kg .Lr D, OIr 2 Julv,2OI2, heavy rain caused flood in Assam' lt affected the people in need, the Disaster hundreds of people there. To help Management Committee sent packets of fruits, pulses, and many daily commodities there by air. Which unit of measurement can be used to weigh them? Discuss with your teacher about floods and disaster management' Write two ways in which you can help people in flood-affected areas' AAoths Around Us Bala's mother sent him to market to buy mil( sugar, a candle, and some chocolates for himself. He went to a shop and asked for the same things. The shopkeeper asked \"How manv chocolates? How much milk and sugar? A candle of what length?\" Bala did not kn-ow the answers of these and returned home to ask his mother again' Go to a nearby tailor shop and find out how the tailor measures cloth' Find out how much cloth would he need to make a shirt of your size as well as that of your father's. Record the difference between the measurements and share it with your class'

CapacityDr' Capacity is the amount of liquid a container can hold. D(F All the containers shown above have different capacities. Circle the image showing greater capacity in each option. L. 2. pa v 3. 4. D nr:06. 5. \";9 Standard Unit of Capacity At a medical shoo At a milk booth At a petrol pump

Rohan bought a L00 mL bottle of cough syrup from a chemist. He also bought 2 L of milk from a milk booth. He got filled the petrol tank of his car with 5 L of petrol. The standard unit for measuring capacity is litre. The short form for litre is L. 1000 mL makes l litre. 1 litre = 1000 millilitres L. Put a tick mark (r') against the unit that you will use to measure the following: a, D, a E',E L !.LE D'.\",D e. f. E',D D',D D..\",E o n. t. D'rD D.,D D.,D

D[arus,[aE €lEl,fIrl A-u!I|UY Objective: Use of centimetres Materials required: Toy cars, tracks drawn on a floor or any surface Method: Divide the class into groups. A racer is appointed in each group, and others become team members. Children place cars at Start. Centimetres are marked on the tracks. Students release their cars and the team members notice the distance each car travels. Students in each group take turns in becoming racers. Make a chart and note the distance travelled by each car. Distances are added up and the team that has the highest total is the wlnner. MY Project Learn to make a weighing balance gtep 1: Take two big plastic bottle caPs'MaKe. thrieholesin eachbottle cap (under eomeone'e supervision). li-eh,nteioolthh2er'.e. a'rrideaekaetatanthdcetoieaslifxrhceaoenrgneeenrrdeeanoodfn6lLhhtehebreoeilathtdleeerocefanPedsqsuwoalfltlhh.e coalhanger. Step 5'. Tie a small threadin-between the nanger ' ioi'\"an use pebbles of different sizee as weightsin oni cap and'obiect tobe weighed canbe placedin lhe otner cap.

1. Which unit will vou use for the following measurements? Pick the correct option from the'list below and write it in the blank space' Centimetres 6rqms Millilitres Metres Kilogroms Litres a. Weight of a sack of rice o. Capacity of a bottle of eYedroPs c. Weight of a television @z ; o. Weight of a walnut Length of a straw f. Length of a ribbon ?(bf&#> ',-^1 Capacity of a tub h. Capacity of tetrapack of milk i. Length of the bed j. Capacity of a cuP of milk @ft k. Length of a shoelace oo ooWeight of a soap

There are several things we see in daily life. See the figures given below ldentify which of them are generally found to be below L kilogram and circle them with orange colour. Circle the ones above l- kilogram with blue colour. Choose the correct option. 1-. The distance between Delhi and Mumbai is d. None of these a.1-429km b. L429 kg c.1,429 L 2. How many metres are there in L kilometre? a.2000 m b. 1-0 m c. L000 m d.Lm 3. 1kg=466t* a. 600 g b.60g gc. 5000 d. 6I 4. How manv millilitres are there in L litre? a. L0 mL+ 10 mL o. L00 mL + 800 mL c. 500 mL + 500 mL d. LmL 5. L = 700 m1+ 300 m1 a.4 L b.2L c.3L d. 1t ETNTAEt|ETNAEE EAET'E

10\\ j-1--------- j-----':----:---':) -------------------------------- Colour the shapes in the picture according to the given colour codes. oI tr I AI E0 I T

t- Curved Lines and Straight Lines ---F Have you ever observed different hair styles? oC You can see that hair in each style are not alwavs Uo straight. They are curved also. lf you stretch a rope tightly, you get a straight line. lf you hold the rope loosely, you get a curved line. Straight line Curved line oThe following objects are having straight or curved lines. o Straight line Curved line Straight line Curved line Squares, rectangles, and triangles are made of straight lines. Circles and ovals are made of curved lines. Horizontal, Vertical, and Slanting Lines A straight line can be horizontal. vertical, or slant. Horizontal Line Horizontal Vertical Slant Observe the top and bottom edges of a refrigerator, door, and school bus. The lines formed by them are horizontal lines. IverticatLine rIt _.cH_ Observe the images. When lines are drawn from top to bottom, i.e. in a standing position, they are called vertical lines.

Slanting Line Observe the following pictures. Straight lines which are neither vertical nor horizontal are called slanting lines. Join the dots with curved or straight lines and make at least three designs of your own.