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I ldentifyyour strongest skills, track year on year perfofmance See clearly where you needto improve Measure your true capabilities on a global scale n 20171he nrost.ompfehens ve, annLrr, glcbe ben.hmerkof earning progress wi b-\" laLrnchecl n rdia :DAS ESSesses the h gher order th nk ng sk, s that underp n sLjcl]ess n N'lalheriatlcs, lllScience Eng sh lC 2 L2l and D g ia Technologres, (Cl 3 Find out more at www.macmillaneducetion.inlicas frf\\4fi, uNswctobat - edL, a-io. CA,i j3 cr.ar.loi UNlil,\\ G 05:,aih.ly oriea e eI:pj.i,snero.t!ieC UNS\\I! Ausra a ilfe ilirersryoi NcwS.!i\\|lt er.r5 re y,n fd a b! r,'lac.r:an ad!.ai:oI es]

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A MACMILLAN O Mdcnittan latblishers Indtd Ptivdte 1td 2013 2017 Ao\"r.1rli\"nnoeS-h.^,'rt.\"norreosOincutro\"e.oda.nuyrndldanenrrgruirbahgeeed(o.oprrvdcno_gm'hmpr uralteecdrr'lasNnroSorucpaJagneir, oi rhis n'rbl(arron d rdric\\aL 'J rcm in anv fonn or bv anv means. etectronic, m;chanical, masneiic' oplical' chemical marual' Dh;tocoDv or otheNne wnhout the prior permission ofthe copvrighl owner *vLu p\"^on *lo aoes unauthorised act in relation 10 this publication mav le iiable ro cnminal prosecution and civil claims for damascs Repinted 2011 (Thtice), 2015 (Trik) 2016 Reptkted 2017 (Thtice). 2018 (Thricc) 2t)tq MACMILLAN PUBLISHERS INDIA PRIVATE LIMITED Delhi Bcngaluru Chennai Kolklla Mumba' Ahnedabad Bhopal Chandigarh Connbalore Cuttack Cuwahati Hyderabad Jaipui Lucknow Madura' Nagpu Patna Pune Thntrvananthapumn Visakhapatnam ISBN: 9?8-9352-52161_0 Published by Macniuan Publishcrs India Pnvate Ltd, 21, Patuuos Road. Chcnnai 600002, India Printed at Kriti, New Delhi 110 020 ,**.. -tr,o(t\"rhTahristhbeotc\"ooknilli\"senmtseaonf ttthfroer\"rbeodoukcadloionnhoaatl sau/hdoadhvtlceeabmaeneinyngcuopnpuaytblroliegsihoetsfoTarhcoekthmaeurythinostroe(usllr)ecccotufatahnledpribofaoponekynyhcaorsip'g/hyhartisvgehottfahkaaensnvbapelelesrreoiannsaoidnnvaeabrrltycnntlavminefrrinwghead!, \"\"*,please nodfy the Publishcr in writing for anv concctive action\"

Vrelace Maths Xpress for Classes I to 8 has been developed by practising teachers and maths experts. Based on the latest pedagogical approaches to teaching mathematics, the series provides a strong mathematical focus and plenty of opportunities for Continuous and Comprehensive Evaluation. The series is based on the premise that all students can become powerful mathematical learners. SDecial Features a Let's Recall recapitulates previous knowledge of concepts a Maths Around Us helps students apply mathematical concepts in real-life situations a HOTS/Target Olympiad empowers students to think out-of-the-box a Speed Maths/Mental Maths prepares students to carry out quick calculations a Take Care helos students avoid common errors a Maths Lab Activity and Project connect maths with real-life situations a Fun With Maths and Maths Game reinforce the concepts taught in a fun way o Enrich Yourself provides deeper insight into the concept under study o Revision Station helps students in assessing their understanding ofthe concepts learnt A Worksheet helps in reinforcing the concepts learnt d Glossary serves as a ready reference a Practice Sheets aid in comprehensive evaluation . Maths Engine includes tasks that foster creative thinking and problem-solving skills among students

(1 \\tressom Strueturc Recapitulates previous knowledge of concepts. i^.1hr A-attl l. .:. tllc\" Helps students apply mathematical u,l$ concepts in reallife situations. Empowers students to think rl out-of-the-box. \",.,.,i,\".;,\",\",\"..,,..-,,..-\".,.,,\", i . A r!,l,ABl Connect maths with real-life '-.i - - , )I I situations. Obj€dive: ro unde6tandlhe.ofuoptofJddinon ui ng a lqure g, d MaEiak required: Asqua,e grd {10 x 101:nd Gyo6 nep 1:Lke:10 x 10sqlaresnd n srep 2:Add i0mber by.olourngihesrd tlep 3: couf, trhprotrl ^udberol.ol!u,ed square!

Reinforce the concepts taught in a fun way. Helps students in assessing their understanding of the concepts learnt. i,\\']\\ I

Dlgltul Re3ourcc : 0 gqpdtot 1. Numb€rs up to 200 o. Numbersupto 1000 ] / 7. Addition and Sobtraction up to 999

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Contents t 1. Numbers up to 200 19 2. Addition 33 3. Subtraction 42 63 4. ylultiplication 76 5. Equal Sharing 94 6. Numbers up to j.000 LI3 7. Addition and Subtraction up to 999 8. More Multiplication r27 9. Measurement IJ6 L52 10. The World of Shapes 11. Patterns toL 12. Time 172 13. Money 181 14. Data Handling 189 190 practice Sheet 1 191 practice Sheet 2 * **1 Glossary

1 1l-l) Je 2D!) Nu,uaER 6aile Max and Nikki are playing a number game. Each of them throw the die twice to make a 2-digit number. Examples: . 4 and 6form the number 46. . 3 and 5 form the number 35. a... a d..../aJ' rrrrl{ Number Names They have filled the table with numbers and number names, Repeat the same activity in your class and complete the table. Circle the smallest number in red and the largest number in green.

Building Numbers uP to 200 ffitr; lalllal all L0 ones l ten illlllllll t hundred 10 tens How manY hundreds are these? Guess' hundreds = 200 Number Name All numbers can be written in words' Example: The number name of 101 is one hundred one. The number name of L43 is one hundred forty-three. The number name of 178 is one hundred seventy-eight. r.H

1.. Fill in the blanks and.the boxes. One has been done for vou. ^J ll BBEI I t hundred =+2tens ,I + 2 ones = ilil :: hundred _+ tens _+ ones ,l -IItt ltl tttl 'llllllll hundred _= + tens L_J L_JLJ _+ ones tl hundredt DDDlIlt -_. + _ tens= _+ ones == hundred _- ta_-J]ta_tJat_-Jl _+ tens _+ ones

101 106 111 113 1,42 120 I17 13I r27 138 135 1,41 151 155 1,63 153 168 160 fl1. t76 i /Bq 1s4 I \" -188 a \" ''.-.t:-:. Y^'n ..1,199 ,,\",.o-o.-.&.'r-'.,\\ + _ _. 11&, ,// *,. -'Q)':O--.----

3. Complete the following as instructed. a. Write the number that comes just after the given number. r'11I \\ a)(,lt4z) li 16J '\"-''))' b. Write the number that comes just before the given number' c. Write the number that comes in-between i'ri @A f\") c@ ev w O@ d. Complete the number sequence. t\\!3q.-.J 13 !3? J \\.- 4 Write the number names for the following numbers. a. 148: b. 164: c. 200:

,1 Represent 183 on the abacus. The number 183 has 3 at its ones place,8 at its tens place, and L at its hundreds place. So, we place 3 beads on the ones rod,8 beads on the tens rod, and l- bead on the hundreds rod. Find the number if 2 beads are removed from the tens rod. Find the number if 3 beads are added on the ones rod. , ,-, Represent 108 on the abacus. a. Find the number if one bead is added in the ones rod. b. Find the number if seven beads are added in the tensrod.{-*--l ,Fl- MY Prol\"\"t 0 A'n f.ldfi Create atleaet two 3-digit numbers i in your activilY sheet ueing coloured sheel cut-oulg. Make cut-outs to ;: l:l repreeent hundr eds, lens, and ones as shownhere. il 123 = Thundr ed + 2 lens + 3 oneg ones tens

Expanded Form ., ;, :'. We can write anv number in terms of ones, tens, and hundreds. This is known as the expanded form. For example, we can write L63 as L hundred + 5 tens + 3 ones. This is same as 100 + 60 + 3. Examples: a. Write the expanded form of 146. ]46 = thundred + 4 tens + 6 ones =100+40+6 b. Write the expanded form of 180. 180 = t hundred + Stens + 0 ones =100+80+0 Place Value and Face Value :::: : -' The place value of a digit is the value of a digit due to its position in a numoer. Examples :lf2is in the ones column of a number, its place value is 2. lf2is in the tens column of a number, its place value is 20. lf 2 is in the hundreds column of a number, its place value is 200 See the p lace va of the ircled d igits. A number con be a. 1st6, b. t@a formed if the ploce volue of its digits is -@@.. @so\"- o r@o The face value of a digit is its actual value in a number. Examples: lf 5 is in the ones column, its face value is 5. lf 5 is in the tens column, its face value is 5. lf 5 is in the hundreds column, its face value is 5. 'I-he face value of a number alwavs remains the same, and does not change with position.

1. Write the expandedform of the following numbers. One has been done for you. a. 749 = thundned+4tens*9ones= 100+40+9 b. 1s1 = c. 166 = d. 178 = e. 188 = f. 199 = 2. Write the place value of each circled digit in the following numbers. One has been done for vou. Ea. r@0, @ b 1@r, n.t+@: !d. @ir' D tre. ro0: f. r@o: 5. Fill in the blanks. the face value of 9 't [-] [-1.a. In 194, the place value of 9 is the face value of 5 is [---] [-1.b. In L45, the place value of o is . [-*lc In 138, the place value of r ir the face value of r is [--1. . ln 175,the place value of 7 D E.'t the face value of 7 '. k [--le. In L83, the place value of 8 is [----l; the face value of 8 't

ComParing Numbers'i;w] Dlfferent Number of Digits '<' is less than symbol. '>' is greater than symbol. lf the number of digits is different in SCORECARD the numbers being compared, then the number having more digits is greater. Example: Aman and Ronald are playing a game. Aman scored 68 points, whereas Ronald scored l-43 points. Who won the game? Compare 68 and 143. rElil rEE A 3-digit number is always greater than a 2-digit number. Hence, 143 is greater than 68. 143 > 68 Ronald won the game. Same Number of Digits lf there are same number of digits in the numbers being compared, then start comparing from the hundreds column till the digits are different. rtNE TEEExample: Compare I84 and L32. Slnce the digits in the hundreds column are same, compare the digits in the tens column. The digit 8 in the tens column of 184 is greater than the digit 3 in the tens column of l-32. So, 184 > 132.

L Colour the glove with the greater number blue' One has been done to.,TOr you. ag '-Y) a t34t r t95 l ' ('*a't,tv,'iri ' i''oJ}Yr;Li1 ' (it'Yt2'{'t 2. Colour the bell with the smaller number'.': ',', '' One has been done .Ffor you. .It{ o. c. a. 'L27'\\148 t4-5 t75, Ll3-4 r37 \\,J .I,. o-d. 39 176 f. tgg .Lg4 L(0L7 -tL7' 3. Colour the part having the greatest number blue and the part having the smallest number

Orqer ot l\\umoers E-*. ' Observe the two events. New Year Pafi Running a Race Here, the starter says I,2,3, go Here, people say 5,4,3,2, 1' and the race starts. and celebrate. When numbers are written in When numbers are written the order of the smallest to the in the order of the largest to largest, it is known as increasing the smallest, it is known as order. This is also known as decreasing order. This is also ascending order. known as descending order. 1.. Arrange the following numbers in ascending order. a. 46 163 728 1L0 b. 126 124 r25 120 2, Arrange the following numbers in descending order. a. 1.49 39 729 189 o. t23 122 131 707

Form ing Num bers t-iita;;*..o;,*i;: :. Numbers 52 and 25 have the same digits, 2 and 5. Are both the numbers same? No, they are not. 52=5tensand2ones 25=2tensand5ones >25 In the same way, 93 > 39 and 16 < 61. To make a large number with any digits, say 2 EE and 8, put the larger digit in the tens place. So, 8 2 number the larger number formed with the digits 2 and 2 8 .--L-Samrgaell number 8 is 82. To form the smallest number using the digits 2 and 8, put the smaller number in the tens place. So, the smallest number formed with the digits 2 and g is 2g. lf we use the same digits like 4 and 4 to form a numbel will we get a larger or a smaller number? No, it will be the same number, that is, 44. Similarly, if we use 0 as one of the digits to form a 2-digit number, we will get only one 2-digit number. Example: The digits 8 and 0 will give us only 80. L. Arrange the digits to make the smallest and the largest possible 2-digit numbers. One has been done for you. Digits Smallest Possible Number Largest Possible Number 6,3 8,6 qq an 6,6

Even and Odd Numbers Bvcn Numbers Numbers that can be put into pairs are called even numbers. For example, these 10 stars can be put into five pairs. So, L0 is an even number. ** ll *r{t*{$s Even numbers have2,4,6, 8 or 0 in their ones column. Examples: 12,14,1.6,18 and so on are even numbers. Some more examples of even numbers include 42, 80,76,38,24, etc- Odd Numbers Numbers that cannot be put into pairs are called odd numbers. For example, these 9 stars cannot be put into pairs. One star is left s# {+# #s ## *unpaired. So, 9 is an odd number. Odd numbers have 1, 3, 5,7, or 9 in their ones column' Examples: L7, 13,15,17, and so on are odd numbers. Some more examples of odd numbers include 43, 87 ,75, 39,21-, erc. 1. Choose and write the even numbers among the following in the space provided. a. 90, 37, 56, 3L, 9I, 87: b. ts2, 187, t20, t98, !67, \\70: 2. Choose and write the odd numbers among the following in the space provided. a. 69, 66, 21, 40, 53, 62:. b. 188, L57, !69, 138, L40, 123:

Skip Counting on the Number Line Here is a number line. -L 0 1 2 3 4. 5678910 We can use this number line for skip counting. Skip Counting in 2s Start from zero, skip to every second number. Ship Counting in 3s Start from zero, skiP to every third number. Skip Counting in 5s Start from zero, skip to every fifth number, till you reach 30' *' ,t,,,'t,\" \"' \"\"j,j,i;i,j,'W;Xf012345878910 11 12 1314 15 1617 18 r9zo 21222324 25 Skip Counting in 10s Start from zero, skip to every tenth number, till you reach 30' o ! 2 3 4 5 6 7 8 910 1112 1314 15 16 !7 7A ag 20 21 22 23 24 25 26 27 2A 29 30 31 32 33 34 35

Ordinal Numbers ffi&L*' third (3rd) and fourth (4th) person, place' or a thing' i.ii\"iNumbers such as first (1st), second (2nd), an oblect, numbe4 ir,\" position of These are called ordinal numbers' When you say the letters of the alphabet in order, which letter do you say first? Ninth L. Fill in the blanks by skip countlng' a. in 2s: 2,4,6, , b' in 5s: 5' IO' 1'5' AAoths Around Us Richa was going on a vacation from Mumbai to Pune with her familY. On her way, she saw a milestone with the number 149 km written on it. She asked her father about the number 149. She knew numbers till 100 only. Seeing her eagerness to learn, Richa's iaitreiexptainla her meaning of this number on the milestone' i\"iJiitli'tr'iioHeielair.e\"frra.Uthsreoort,ns1ea4r,igdS,tkro'm'Am\" enimssutihlhte,uese\"txdo|.pinslentaaainnimsceeeudsotteihfldla]-ptt4ou9innrieesLp'4forr9oen,msetehnHeotruuedrnidcsaturraeerndretcFenhotubrlnotevdct-waNreetiidnoeenn('1.'\"t0HwH0eoe)r' 4 tens (40) and 9 ones (9). Richa felt quite happy to learn about a large number'

,T '*trVEl Arrange the letters as per the order given and fill in the boxes to decode the secret messase. irSecond letter B Fifteenth letter is t-at Seventeenth letter is (t:.,.l i,Sixth letter B E Fifth letter is B Twelfth letter is .CJJ irFirst letter Eighth letter is E Eleventh letter is Fourteenth letter is In..] irThird letter i3 {3Seventh letter is Thirteenth letter is Ir EFourth letter f\\y\")l oTenth letter is tn Lr _l DDSixteenth letter is @ Ninth letter is @ DDD r_Dt DDr_Dl DD Write your views on the message decoded above.

1. Write the number na me5. b. IT7 a. 76 2. Fill in the bla nks. b. 76= _tens + ones a. L00+40+2= 5. Write the place value in the first box and face value in second box of the underlined digits. 1.o1nf__l, L--^lZr---L-------J-L-.\\_l-___--J.) b. LJZI I c. o. 1E4DD A Fill in the bla n ks. 170, L6t, 5. Arrange the following numbers in descending order. d.70o a. 86,44,92,90: b. 101,99,Lr2,157: 6. Tick (r') the odd number. a.86! b.8so 7. Join the dots and colour me. Also, give me a suitable name and write it in the ,\". boxes given below. rr' r4o D[]DDDDN!DD

1r 1 t WoP*\"y*7f Nul,lgER SeencH Read the number name and ldentify the number in the grid. Circle the numbers in the grid using a pencil. t 1o5084 4 7 9 A 1. 9 9 3 1. 1, 0 7 6 5 0 9 z 8 1, 00 405 3 9 7 5 4 3 9 8 6 9 4 z 1, 1, 3 8 3 5 0 9 t1 1. 0 4 2 6 3 1, 8 7 1, 9 8 4 One hundred forty-two One hundred twenty One hundred sixty-five One hundred four Two hundred Sixty-nine One hundred seventy-one Fifty-three Eighty-one One hundred thirty-eight One hundred ninety-eight One hundred ninety-nine One hundred ten One hundred eleven FI Fl E,E E tI F F EEEFTF r I r t,t I IF f,.FI F ||I F F II E || ET H H t_H I:HIITH HIIHHT T IIITIBT HTggT IgETEIgHIB E ,_l?bt\"a-

lq.n\". When we put things together, we do addition. EE il '+' is the sign of addition. 2 2 *-Addend 1 2li Numbers that are added are called addends. + -Addend ii The result that we get is called the sum li or tota l. There will be no change in the sum, even if we change the order of the addends. For example, 22+ 12= t2+22=34 Ar nre Pecr 1. Add the following: b. ?25 children + +t children = ii a. 34 birds + 23 birds = ? EE EET 25 +4L 34 +23

Additionzv.tr Adding 2-digit Number with a 2-iligit Number Without Regrouping . Example: Add 43 + L5. IIEI 43=4tens+3ones llll,l:15 1-5=1ten+5ones i3 6l Step 1: Add the ones. 3+5-8ones Step 2: Add the tens. 4+1=5tens Thus,43+15=58 With Regrouping When we have more than 9 ones, we regroup the ones as l-0ones=1ten llttt= lrtla L0 ones l ten Example t: Add 47 and 26. Method 1: 47 = 4tens + 7 ones [Step 1: Splitting 47 into tens and ones.] 26 = 2tens + 5 ones [Step 2: Splitting 26 into tens and ones.] 47+26=6tens+ L3 ones [Adding Step l and Step 2.] NoW L3 ones = Lten + 3 ones llllll.l:lllllll:So,6tens + L3ones 6tens Iten + 3 onesJ Ttens+3 ones Thus, 47 + 26 = 73 13 ones \"\"*-

Method 2: Step L: Add the ones. 7 + 6 = 13 ones Fr\\r4 7 )/z+o==r1aO+3 Step 2: As L3 > 9, regroup the ones TI ?i_ -i-l column as 13 ones = l ten i- :,r 3 ones. Step 3: Carry 1 ten to the tens column and write 3 in the ones column as shown. Step 4: Add the tens. 4+2+1,(carryover) = 7 tens Thus, 47 + 26 = 73 Example 2: Add 83 + 92. rEEI Step 1: Add the ones.3 + 2 = 5 ones ,f\\ Step 2: Add the tens. + 2 5 8 + 9 = t7 tens = t hundred + 7 tens I Step 3: Add the hundreds. 0 + 0 + 1 (carry over) = t hundred Thus,83 +92=1-75 The sum in an addition problem is always greater than each ofthe addends except when one of the addends is zero. 72+ 1-3 =25 (25>12,25> L31 32 +O =32(32= 32'32> Ol 15 + 1,1 = 26(26>15,26>71'l 0+48 =48 (a8 > 0, a8 = 48) Adding 3-digit Number with a 2-digit Number Wlthout Regrouping Step 1: Add the ones. 4 + 5 = 9 Step 2: Add the tens. 3 + 3 = 6 rETilExample: Add 134 + 35. Step 3: Add the hundreds. 1+ 0 = Thus, 134 + 35 = 169

L. Add the following: EE EE Elil EU 72 555 20 33 16 rEtil EE CTEE h.EEEI 68 73 7 8 75 1,7 8 3 EE EEI l TEE EEI 9 1, 40 63 :, 8 6 29 8 9 7 'f,NEEI n. It Elil rilEE 0 t22 07 7 56 80 P TEreI rEEI rEu 65 00 8 24 77 0 '. ltrEE rEE 87 4 L 1, 0 5 0

Addlng Three 1-digit Numbers ETExample: Add5+6+3. Step 1:Add the ones. e altttattltttra 5 5+6+3=14ones 5 Step 2:As 14 > 9, regroup the ones 3 column as 14 ones = l ten + nr 4 ones o-5 Carry 1 ten to the tens column tltl and write 4 in the ones column. 6 Step 3:Add the tens. 0 + 0 + 0 + 1 (carry over) = 1 1\"n Thus,5+6+3=1,4 +5 lt_Tl --7t Adding Three 2-digit Numbers Without Regrouping Example: Find the sum of 21, 64, and 13. EET Step 1: Add the ones. la ililllTrlI.T:F.'llIIE:I 35 21, L+4+3=8 il 64 Step 2: Add the tens. +rt5;--;t l' -l 2+6+1,=9 Thus, 21 + 64 + 13 = 98 Wlth Regrouping Example: Add 35 + 54 + 43 Step 1: Add the ones. 54 5 +4+ 3 = 12 ones = l-ten + 2 ones + 43 Step 2: Carry l ten to the tens column and write a 2 in the ones column.

4 Step 3: Add the tens. 3+5+4+1-(carryover) I F#? = L3 tens = t hundred + 3 tens [By regrouping] + 3 Step 4: Carry L hundred to the hundreds column and lJz write 3 in the tens column. Step 5: Add the hundreds. 0 + 0 + 0 + 1(carry over) = t hundred Thus, 35 + 54 + 43 = !32 .'EEI \" EEIL, Add the following: '' Elil d EEI 1, 1 2 7 5 3 34 +5 6 +4 Edt2 f. EEI g.EE h E3E3T 23 42 15 T2 1,2 10 31 +47 32 +42 rEE jEl IE k. lrEEI t9 89 T9 76 27 1, 0 19 26 48

99*l Wrlte all the number pairs from the given grid that glve a sum of 100. One has been done for you. r_fE@@ r r@ FEEIIEEE E[| @E @ @ @ Addition Facts Order Property of Addition I lrr, srrrn does not change even if the order of the addends is changed. lxamole: .l j-t -tj1 42 Now, change the order ofthe numbers as 3 + 4. The sum will remain the same. l.t' :1. I 2+4 So, we can say that 4 + 3 = 3 + 4.

-a Zero Ptoperty of Addition lf any number is added to zero or zero is added to any number, the sum will be the number itself. qaExam ple: + . a_-/vQ-- /-Y- B+ Q._Q 9p + -r 1. Fill in the boxes using the order property of addition. =E*Ea. [-Tl+[---l [-tl+T2-l=E *Do 'B+[--l=E*[] Do [-4-l + [-_l = [5_1 * 2. Fill in the boxes using the zero property of addition. a. E+[-l=f] 'E+[-_l=[51

Rlnky saw 55 birds on one tree, 49 birds on another tree, and L2 birds on the 3round. How many birds did she rEr 3.c In all? \\,.v;\\ o-5_ Number of birds on the first tree Number of birds on the second tree 4 Number of birds on the ground T Total number of birds tt7 Thus, she saw 1\"17 birds in all. 1. Akshay picked 48 flowers and his friend oicked 17 flowers. How many flowers did both of them collect together? Answer: 2, Sameer saw 55 cars and 58 vans while travelling from Delhi to Jaipur. How many vehicles did he see in all? Answer:

,,,,1 lVEl stt.rt,.lohnv, and Tia collected money to help the orphans. Samara - collected { 75, Johny collected { 34, and Tia collected { 48. How much money did they collect for the orphanage? Present your views in five lines on the topic'Help the Needy'. 3. There are 75 comic books, 34 short storybooks, and 48 science fiction books in a library. How many books are there in all? Answe r: 4. In a toy shop, there are 85 toy cars, 56 soft toys, and 48 board games. How many items are there in all? Answer:

Ms Smith took students of class 2 to a park. 27 students of class 24, 30 students of class 28, and 25 students of class 2C visited the park on Monday, Tuesday, and Wed nesday, respectively. How many students visited the park in the three days altogether? Write about the importance of recreation in our lives. Moths Around Us Farzana, Remya and Lovleen are students of Class 2. They were asked bv their maths teacher to count the total number of classrooms in the first 3 floors of their school. All of them went together to the third floor and started to count the rooms. Seeing this, their teacher advised them to go separately to the 3 floors and count the number of rooms in each floor. They found this process time saving and went rcparately to the different floors to count the rooms. Farzana counted 45 rooms in the first floor, Remya counted 51 rooms in the second floor and Lovleen counted 39 rooms in the third floor. Thev added the three numbers to find the sum. 45 + 5L + 39 = 135. Hence, there are 135 rooms in the first 3 floors of their school.

D[ogu$ Iiasl 4M[UV Objective: To understand the concept of addition using a square grid. Materials required: A square grid (10 x 10) and crayons Method: Step 1: Take a 10 x L0 square grid numbered from L to 100. Step 2: Add numbers by colouring the grid. Step 3: Count the total number of coloured squares. Example: Add 45 + 38. To find the sum, colour the first 45 squares blue and then colour the next 38 squares green. Total number of coloured squares is 45 + 38 = 83 Thus, the sum is 83. Solve other addition problems as given below using this method. 35+55=? 25+66==?? 61 9.\\ 9 10 It2+88==?? (r 16 t1 \\l 13 4 L8 19 zo 14 {q LO 21 18 ?q 30 \\ 11 t2 3 40 ,.|1 \"R \"q 35 JO 31 48\\ 49 50 1 65 ^e ,41, 58 \\ cr-q 60 1 32 b 5t bo ot 'al44 68 -\\69 70 54 5I 'rq 80 N bt /o\\I) -. \\ a1 88 89 90 ) 1L .-a..1 91 98 99 ann ffi81 85 8b ql o? 95 96

t1t::.\".'\"\"\"\"\"\"\"\"\"\" 1, Add the following: .EE : a. EE \" EEI 4L 'llnu i L 51 1. 4 T>: ; rbi : z6 l\" 0 28 i +5r6-:=l 34 26 : I l: 2. Regroup and find the number. I a. 2tens +L6ones = tens + 6noq = : ones ; ones : ones = b. 5 tens +20 ones = _tens + c.4tens+32one-s=-tens _ d. 7 tens + L7 ones- tens + 3. Twenty-four children from class 24, 18 children from class 28, and -4 children from class 2C participated in a quiz competition. How many participants were there in the competition? 4. In a book fair, 95 people visited on the first day and 54 people visited on the second day. How many people visited the book fair in two days? Naomi read 111 pages of a storybook in the first week and 112 pages in the second week. How many pages did she read in the two weeks? 6, A farmer has 23 cows, L8 horses, and 14 goats. How many animals does he have? /. Add the following: a. 23+45+63 b. 62+74+43 c. !22+3I d. L20+47 tl, There are 43 students in class 1,52 students in class 2, and 49 students oo ooin class 3. How many students are there in all the three classes?

Find the sum and write the corresponding letter at the bottom to decode the secret message. One has been done for Vou. E rEr A rEr 58 39 42 +65 z5 +48 7a rEEI M rETil rEEI U 85 74 49 27 56 24 rnEt P rITET rEr R 65 18 25 26 33 +47 rErrEEI oLJ G. EIETOI 59 73 +12 +27 L4 o.)c)@130 100 73 t23 I02 O')OO OO51 90 62 72 t23 90 72 I lt rt'E

Subtraction is the opposite of addition. subtraction means taking away smaller number from a larger number. '-' is the sign of subtraction. E The number from which we subtract is called 8 *_ Minuend the minuend. The number which is subtracted from the f;t3 .--Subtrahend mlnuend is called the subtrahend. L: I ._ Difference The result is called the difference. l. Subtract numbers using the number strip. One has been done for you. 4 5 6 7 8 9 tO7LL2r3t4L5L6t7L8t920 .Lq-@=ril b@-tr=[---l =f-l n.[q-E d@-tr= 7, subtract the following: d. ItE fillil EE . EE'. b 49/a88il

SubtractionE' Subtracting l-digit Number from a 2-digit Number With Regrouping Example: Yashmith had 95 crayons. Ajay took 8 crayons from him. How many crayons were left with Yashmith? To know the number of crayons Yashmith was left with, he had to subtract 8 from 95. But Yashmith was unable to solve since there were not enough ones as 5 is less than 8. So, he could not subtract 8 ones from 5 ones. He needed to regroup. Subtract 8 from 95. Step L: Subtract the ones. Since 8 cannot be subtracted from 5, borrow l ten from the tens column and regroup the ones column as L0 ones + 5 ones = 15 ones - $! IINN li$mn l ten (10) + 5 ones 15 ones ET @s @x Subtract 8 ones from 15 ones. [-z8 15 - 8 = 7. Write 7 in the ones column.

Step 2: Subtract the tens. ET Since l ten is borrowed by the ones column, @s @z 9 tens have become 8 tens. t;-78 8-0=8tens Thus,95-8=87 So, Yashmith was left with 87 crayons. Subtracting 2-digit Number from a 2-digit Number Wlth Regrouping Example: Manisha wore a necklace which had 43 pearls. The necklace broke and she lost 17 pearls. How many pearls were left in the necklace? To find the number of pearls left, subtract 17 from 43. ETa'tAi\\ *6-a2 Stcp 1: Subtract the ones. L7 Since 7 cannot be subtracted from 3, borrow l ten t-'l =t from the tens column and regroup the ones column as 1\"0 ones + 3 ones = 13 ones .. ir, ir.i. ':- ':' 1-ten + 3 ones 13 ones 13 -7 = 6 ones. Write 6 in the ones cotumn, \\lr'11 2: Subtract the tens. EEI Since l ten is borrowed by the ones eK @.c- column, 4 tens have become 3 tens. t7 3-1=2tens l--:-----) Thus,43- 17 =26 So, 26 pearls were left in the necklace.

t. Subtract the following: .EE d EreI a. Elil b nGl 8 9 95 EE EET EE EEI 65 76 29 27 32 L3 NE Etil 88 43 63 EE EE 25 L8 85 92 t7 46 Moths Around Us Sun rises and the night falls. We call it a day. We know that 7 days make a week. Different months have different number of days. After we go to school and study well for almost 5 days, we get Sunday when we play and enjoy. Let us play an activity to find out number of days left for Sunday in this week. Write down all the week days starting from Monday and number them like Mon-1, Tue-2, Wed-3, Thu-4, Fri-5, Sat-6, Sun-7. What is today's number? lf it is Wednesday, today's number is 3. From this clue, find out how many days are left for Sunday. ln the same way, find out how many days are left in this month.

Subtraction Facts :rc1,,,r:,, rt] lf we subtract zero from a number, the difference is the number itself. Examples: 24 - O = 24; 34 - O = 34; 78 - O = 78 lf a number is subtracted from itself, the difference is alwavs zero. Examples: 35 - 35 = 0; 47 - 47 = O;92-92 = O 1\". Subtract using the subtraction facts. A E-E=U b @-@= [l . {-oTl-n= [-o--l dE-E=lru-l e @@--@E==@fl n fl-@= [-ol EE--Er==l-rFtll c h @-@=n j Checking Subtraction Using Addition Eryrdiii r, Rlkky is an intelligent boy as he always checks his subtraction using addition. Wc can check subtraction by adding the difference to the subtrahend. Elil 64 '''_ Minuend Elil 50 Subtrahend -_7tF +14 T 4 _* Difference ---l \\.- re 4-l - In a subtraction problem, if the sum of 'Difference' and 'subtrahend, is tqual to'Minuend', then the answer in correct.

1. Check your subtraction using addition. a. ETil EE b EreT EE 8 4\\z- 53 EE 5 9 ---*- + 18 [l'l\\ c. Hrel EEI d Etil 68\\,\" 90 r2-l-9--l-\\-X-+ - 50 A shopkeeper bought 67 fruit juice packs and sold 45 of them. How many juice packs were left IIEI with him? Number of fruit juice packs bought 6 Number of fruit juice packs sold 45 Number of fruit juice packs left Thus,22 fruit juice packs were left with the shopkeeper. L. A vendor sold 54 mangoes on Monday and 72 mangoes on Tuesday. How many more mangoes were sold on Tuesday as compared to Monday? 2. 60 students enrolled for a school trip. 42 students turned up for the trip. How many students did not go? 3. Aarav has 90 shells. He gives 66 shells to his sister. How many shells are still left with him?

lly-Jgl shivam bought a pack of coloured pencils. The shopkeeper asked for < 1,3. Shivam gave him { 30 by mistake. How much extra money did he give to the shopkeeper? The shopkeeper returned the extra money to Shivam immediately. Which human value was shown by the shopkeeper? Present your views in five lines in your class on the importance of this value in our lives. Wo )uotract 34 from Subtract the number on the top from 47 the numbers given below and write the 47 difference in the space provided. o5 74 'Subtract ^zAo a\".^\"t\"ri ' nifference 48 :r 'l- l) 97 Mbrus IilB A-uIIUV Objective: To solve subtraction problems Materials required: Notebook and pencil Method: Teacher should create a square grid as given below and keep it wlth herself/himself. Select anV two random numbers from the grid and tsk students to subtract the numbers in 54 t7 97 35 their notebooks. Whoever solves first gets 25 Ib 53 10 10 marks. Continue the process till all the numbers are subtracted from one another. 32 52 13 74 Student with the highest score will win. 84 95 29 39

Complete the following tables. Fifteen Less Difference Difference (-1s) Choose the correct option. a. A book has 80 pages. Mohan read 66 pages. How many pages are left to be read? a.34 b. 24 c. 1,4 d. L2 b. Shalini has 39 Indian stamps and some foreign stamps. There are 87 slamps in total. How many foreign stamps are there? a. 34 b. 47 c. 38 d. 48 c. A sports shop has 43 cricket bats and some cricket balls. lf the total number of items is 95. how many balls are there? a. 42 b. s0 c. 52 d. 55 Alwoys remember thot Minuend = Subirohend + Difference 28 1.4 29 31