Acme Mathematics 2 1517. Fill in the boxes.b]jgfu/L cª\\scIf/dfHindu Arabic Numbers Number Name%@ afpGg 52 fifty-two%*^$&#(^&%^(*$%(%$()*!^@(#&@&*^^^!%%&$^%
152 Acme Mathematics 28. Tick the correct answers. a. fiftykrf; %) 50 5 b. c;L* *) 80 eighty c. PsxQ/^! &! seventy-one 71 d. ninety-nine9 (( pgfG;o 99 e. 46forty-six $^ ^$ 5ofln;f. 92ninety-two aofgAa] (@ @(9. Fill in the blanks.Tens Ones PsfpGg Tens Ones%!51fifty-oneTens Ones Tens Ones
Acme Mathematics 2 153Tens Ones Tens OnesTens Ones Tens OnesTens Ones Tens OnespgfGgAj]10. Read the given place value chart and write the number's name in 'devanagari'.(a) Tens Ones ............................................. 8 9(b) Tens Ones ............................................. 2 0(c) Tens Ones ............................................. 5 3(d) Tens Ones ............................................. 8 7
154 Acme Mathematics 21. Read the abacus and write the number. ..................H T O2. Write the place value of 6 in 678. ..................3. The largest 2-digit number is ..................4. The smallest 3-digit number is ..................5. The largest 3-digit number is ..................6. How many tens makes one hundred ?7. Skip count by 10's350 360 4008. Write the words: 8939. Write in the expanded form: 78910. Write in short form: 800 + 40 + 911. Put in the place value chart: 66612. Write in the number: Five hundred sixty-one ....................13. Express in place value chart and write in word: 88814. Write the smallest and greatest 3-digit numbers from the digits: 6, 4, 2 and write in word.15. Complete the given table:H T Ob]jgfu/L cª\\sb]jgfu/L cIf/Hindu Arabic NumberNumber nameNumber SystemMixed Exercise
Acme Mathematics 2 155BASICOPERATIONSTHEME8 Working Hour : 488.1 Addition of Numbers- 2 digits and 3 digits8.2 Subtraction of Numbers- 2 digits and 3 digits8.3 Multiplication - Multiplication table upto 10- Multiplication of 2 digits number by 1-digit number8.3 Division - dividing 2-digits number by 1-digit number
156 Acme Mathematics 21. Solve the problem and go to your home.5+ 3– 2– 1 – 6– 7– 7– 2– 3+ 5+ 6+ 6+ 4+ 4– 3+ 4+ 4– 6– 5– 5– 5+ 3+ 3+ 2 + 3+ 2+ 2+ 1REVISION
Acme Mathematics 2 1572. Add by counting forward:24 + 224 25 2624 + 2 = 2625 + 52525 + 5 = ................26 + 32626 + 3 = .................51 + 65151 + 6 = .................67 + 96767 + 9 = .................88 + 88888 + 8 = .................Can you add faster than me?I know how to count forward.
158 Acme Mathematics 23. Add or subtract and colour the object by answer code.5 → pink6 → orange7 → green8 → red9 → yellowAnswer Code4 + 1 = ...3 + 3 = ...2 + 3 = ...7 + 1 = ...9 – 4 = ...2 + 4 = ...4 + 4 = ...5 + 4 = ...4 + 1 = ...10 – 5 = ...10 – 3 = ...9 – 1 = ...1 + 5 = ...6 – 1 = ... 4 + 2 = ...8 – 1 = ...9 – 2 = ... 3 + 4 = ...5 + 2 = ...1 + 6 = ...
Acme Mathematics 2 159Add the number, colour as per answer code and pick them.42+ 2324+ 2257+ 2023+ 1660+ 3830+ 2520+ 1857+ 4173+ 1211+ 53 28+ 1116+ 410 - 30 → red31 - 60 → green61 - 90 → yellowAnswer CodeActivity
160 Acme Mathematics 2A. Addition of 2-digits numbers (without carrying)ActivityFind out pair of numbers whose sum is 100. Colour them alike. One example has been done for you.12 50 70 4 94 25 72 10 40 4899 50 24 100 6 49 35 90 78 5230 3 82 18 0 80 88 73 64 3670 1 70 98 3 20 12 35 40 5075 38 30 3 97 74 77 45 60 55Classwork1. Match each book to the bag: 2 1+114 3+162 0+101 0+101 2+ 82 0+121 7+132 5+348.1 Addition
Acme Mathematics 2 1612. Fill in the blanks.(a) What is the total of 6, 5 and 4? ...............(b) What is 12 plus 10? ...............(c) What is the sum of 20 and 30? ...............(d) In class-2, there are 25 students and in class-3, there are 24 students. How many students are there altogether? ...............(e) What is the sum of 40 and 55? ...............Exercise 8.11. Read the abacus and add :T O T OT OT OT OT OT OT OT OT OT OT OT OT OT O T O T O T O45 + 32 =56 + 22 =30 + 42 =34 + 62 =47 + 51 =77 61 + 18 =
162 Acme Mathematics 2T O T O T O T O T O18 + 71 = 40 + 60 =H T O2. Add the followings. 2 tens + 5 ones+ 4 tens + 3 ones6 tens + 8 ones=2 5+436 87 tens + 4 ones+ 2 tens + 1 one tens + ones=7 4+21a7 tens + 6 ones+ 2 tens + 1 one tens + ones=7 6+21c2 tens + 5 ones+ 6 tens + 3 ones tens + ones=2 5+63b3 tens + 7 ones+ 4 tens + 2 ones tens + ones=3 7+42d4 tens + 5 ones+ 1 ten + 2 ones tens + ones=4 5+12e
Acme Mathematics 2 1634 tens + 5 ones+ 3 tens + 4 ones tens + ones=4 5+34f1 ten + 5 ones+ 7 tens + 3 ones tens + ones=1 5+73h7 tens + 4 ones+ 1 ten + 2 ones tens + ones=7 4+12g5 tens + 3 ones+ 3 tens + 6 ones tens + ones=5 3+36i2 tens + 7 ones+ 3 ten + 2 ones tens + ones=2 7+32j8 tens + 3 ones+ 1 ten + 4 ones tens + ones=8 3+14k3. Add the followings :7 tens + 2 ones 721 ten + 9 ones6 tens + 6 ones5 tens + 7 ones
164 Acme Mathematics 28 tens + 1 one 6 tens + 3 ones5 tens + 4 ones 7 tens + 5 ones4 tens + 8 ones 2 tens + 9 ones9 tens + 8 ones 8 tens + 7 ones4. Add the followings :2 4+ 5 5T O5 4+ 4 5T O1 3+ 3 5T O3 3+ 6 5T O3 2+ 2 1T O3 1+ 4 6T O4 2+ 3 5T O2 3+ 1 5T O5. Add the followings Add 60 and 20.60 = 6 tens+ 20 = + 2 tens80 = 8 tens8 0+107 0+101 0+604 0+201 0+107 9
Acme Mathematics 2 1656. Add the following numbers :5 3+253 2+377 1+132 1+514 1+185 0+206 0+201 0+705 0+105 0+401 0+303 0+603 0+304 0+301 0+205 0+303 0+305 0+508 0+202 0+70Add 43 and 35.Write the given numbers, one under the other (column wise)Hence, the sum of 43 and 35 is 78Adding the ones digits, 3 + 5 = 8Adding the tens digits, 4 + 3 = 74 3+357 8
166 Acme Mathematics 27. Colour the correct answer.(a) Sum of 63 and 15 is 73 78 75(b) 24 added to 42 is 66 64 62(c) Total of 51 and 47 is 91 97 98(d) 7 plus 62 is 69 62 7(e) 60 more than 10 is 50 60 70(f) 41 and 37 together is 78 77 805 2+234 0+371 9+601 5+341 4+342 3+328 2+153 5+446 3+265 7+2143 ones 40 + 3 = 4 tens + 3 ones67 ones92 ones37 ones85 ones41 ones8. Regroup the following numbers.
Acme Mathematics 2 1674++ = 8+1=2 + ==+2=+ = 9+2=+ 1 ==+=+ = 2++ 7 ==6++=+= 7= 8+1+ 2 =+2=+ = 9Complete the magic path.START
168 Acme Mathematics 26+16+29+23+24+13+35+47+2 5+51+56+67+33+18+21+17+72+49+43+67+18+73+54+7=8+3=2+5=4+4=5+6=3+4=9+3=8+4=5+7=6+4=8+9=6+8=9+1=8+1=5+9=2+2=2+1=Solve the problems and use colour code to colour the picture.BrownBlackGreenBlue9, 10, 11, 13, 17 2, 4, 146, 8, 15, 18 3, 5, 7, 12Project Work
Acme Mathematics 2 169B. Addition of 2-digit numbers (with carrying)ActivityComplete as shown in the table.Name of studentsNumber of erasersTotal of: TotalGopi 12 Gopi and Raj 12 + 15 = 27Nitesh 8 Nitesh and SalmaRaj 15 Raj and TapendraManoj 9 Manoj and SalmaSalma 29 Salma and TapendraTapendra 25 Tapendra and Nitesh1. Add the following numbers as given in the example.8 5+53138Example : 6 7+829 5+334 5+937 2+636 4+719 3+557 1+837 2+518 3+828 6+739 4+328 4+35Classwork
170 Acme Mathematics 2Add 58 and 27Step 1 : Add the ones. 8 + 7 = 15 ones (1 ten and 5 ones). Write 5 in the ones column and carry 1 ten to the tens column.Step 2 : Now, add the tens. 5 + 2 = 7Don't forget to add the '1 ten' you carried. So, 7 + 1 = 8. Now, write 8 in the tens column.5 8+ 2 78 511. Add the following numbers :2. Calculate the sum of the following.9 5+367 7+567 2+883 8+853 9+957 7+548 3+289 2+296 8+743 9+954 8+538 5+375 34 2+2 44 35 4+4 35 26 5+3 55 13 2+4 2Exercise 8.2
Acme Mathematics 2 171a. b. c. d. e.f. g. h. i. j.k. l. m.n. o. p.6 34 5+2 37 44 5+7 58 24 2+6 74 33 4+7 6Colour each leaf that has a matching answer.COLOUR TIME4 6+225 7+627 3+593 7+736 1+285 6+834 6+868 9+655 4+447 3+523 6+876 8+546 7+338 3+446 3+229 4+14139 13213210889681108512210098127123119154180 1256 8
172 Acme Mathematics 23. Solve the following verbal problems.A bear ate 52 fishes on Sunday and 26 on Monday. How many fishes did it eat altogether?5 2 fishes+ 2 6 fishesTotal 7 8 fishesThere were 66 girls in school A and 33 girls in school B. How many girls were there in all ?A cat killed 72 rats in a day and 26 rats in the next day. How many rats did it kill altogether?7 2 rat+ 2 6 ratTotalIn a ludo game Rupak scored 36 points in the first try, 32 in the second and 31 in the third. How many did he scores altogether?In a cricket match, Suman scored 51 runs, Sansar scored 38 and Puspa scored 10. How manydid they score altogether?A wrestler ate 15 bowls of rice on Friday, 12 on Saturday and 13 on Sunday. How many bowls of rice did he eat altogether?
Acme Mathematics 2 173There were 31 boys and 24 girls in a bus. How many children were there altogether?3 1 boys+ 2 4 girls children were there altogether.There were 72 red apples and 22 green apples on a tree. How many apples were there altogether ?7 2 red apples+ 2 2 green apples apples were there altogether.There were 83 red cans and 53 blue cans in a jeep. How many cans were there altogether?8 3 red cans+ 5 3 blue cans cans were there altogether.There were 24 pieces of white chalk and 82 pieces of red chalk. How many pieces of chalk were there altogether?2 4 white chalk+ 8 2 red chalkpieces of chalk were there altogetherThere were 40 apples in the first basket and 60 apples in the second basket. How many apples were there altogether?4 0 apples+ 6 0 apples pieces of apples were altogether.There were 93 written pages and 45 blank pages in a storybook. How many pages were there altogether?9 3 written pages+ 4 5 blank pages pages were there altogether.
174 Acme Mathematics 2C. Addition of 3-digit numbers (without carrying)ActivityNumber Number Added Added Sum33 14 47
Acme Mathematics 2 175ActivityMatch the following (steps of addition)step first add the tensstep third add the onesstep second add the hundredadd the unit lastadd the tens firstadd the hundreds secondClasswork1. Study the given number blocks and complete it.234..............................+++===125..............................359..............................
176 Acme Mathematics 22. Fill in the blanks.HTO(a) 3 hundreds 2 tens 4 ones+ 6 hundreds 4 tens 1 one324+ 641324641HTO(b) 4 hundreds 6 tens 3 ones+ 2 hundreds 2 tens 2 ones463+ 222463222HTO(c) 3 hundreds 2 tens 5 ones+ 1 hundred 4 tens 4 ones325+ 144325144HTO(d) 6 hundreds 4 tens 1 one+ 2 hundreds 3 tens 8 ones641+ 238641238HTO(e) 5 hundreds 6 tens 7 ones+ 4 hundreds 3 tens 1 one567+ 431567431HTO(f) 4 hundreds 6 tens 3 ones+ 4 hundreds 3 tens 5 ones463+ 4354634359 6 5 9 6 5
Acme Mathematics 2 177Exercise 8.31. Add the following:H T O5 9 6+ 2 0 2H T O4 5 3+ 4 4 5H T O5 2 2+ 4 4 7H T O6 5 3+ 2 3 4H T O6 6 5+ 3 0 4H T O4 6 5+ 5 2 4H T O8 3 6+ 1 6 3H T O5 5 5+ 3 3 3D. Addition of 3-digit numbers (with carrying)ActivityFill in the blanks.(a) 2 tens = ........ ones(b) 1 ten and 4 ones = ........ ones(c) 72 ones = ........ tens and ........ ones(d) 89 ones = ........ tens and ........ ones(e) 213 ones = 2 ............................ + 1 .............. + 3 ..............(f) 42 tens = ........ hundred and ........ tens(g) 56 tens = ........ ones.(h) 6 hundred and 3 ones = ........ tens and 3 ones.Study the given problem and its solution.Find the sum : H T O456+ 285
178 Acme Mathematics 2Solution :Step-1 : Add ones, 6 + 5 = 11 onesStep-2 : Add tens, 5 + 8 = 13 tensStep-3 : Add ones, 4 + 2 = 6 hundredsH T O1 14 5 6+ 2 8 56 14 117 4 1H T O3 7 6+ 4 9 5H T O4 8 4+ 4 7 8H T O6 7 6+ 2 9 6H T O5 5 3+ 3 5 7H T O3 7 6+ 2 4 5H T O4 8 7+ 2 9 3H T O1 8 4+ 7 9 6H T O6 4 6+ 2 8 5H T O7 6 7+ 1 9 4H T O5 8 9+ 2 2 3H T O6 4 8+ 1 8 2H T O4 6 8+ 5 7 4Add:1. Add:H T O5 4 6+ 8 6H T O4 5 7+ 6 4H T O3 6 8+ 4 5 4H T O2 7 3+ 5 9ClassworkExercise 8.4
Acme Mathematics 2 179H T O5 8 9+ 2 6 5H T O4 3 6+ 4 8 7H T O1 0 7+ 4 9 4H T O2 3 7+ 6 7 3H T O6 8 6+ 4 9 4H T O5 7 8+ 5 9 5H T O8 9 7+ 3 2 4H T O5 7 8+ 6 3 53 3 84 7 6+ 2 3 921 41 35 2 7+ 1 7 82 5 35 4 5+ 1 2 22 3 93 2 9+ 4 2 93 4 45 1 3+ 1 3 53 7 31 9 9+ 1 7 52 5 03 5 7+ 4 0 85 0 31 8 8+ 2 9 34 9 94 4 8+ 2 3 92 8 95 3 1+ 2 4 23 8 68 4 7+ 2 6 84 2 32 4 8+ 3 5 92. Add:3. Solve the following problems:There are 497 girls and 235 boys in a school. How many students are there in the school?4 9 7 girls+ 2 3 5 boysstudents are in the school.9 4 8
180 Acme Mathematics 2A fruit seller sold 378 boxes of apples on Monday and 466 boxes on Tuesday. How many boxes of apples did he sell?There were 555 people in 10 buses and 295 people in another 14 buses. How many people were there in these buses?Anil and Hari wanted to buy a gift for their mothers. Anil saved Rs. 674 and Hari saved Rs. 257. How much money did they save in all?There were 476 cows in the first village and 384 cows in the other village. How many cows were there in these two villages?Fill the numbers in the boxes and complete the addition pyramid.1 9 2 3 8 4 5 611 11 1116 203971168616Project Work
Acme Mathematics 2 1811. Subtract by backward counting:30 – 2Count backwards from 30.30 – 2 = 2825 – 3Count backwards from 25.25 – 3 = ................66 – 5Count backwards from 66.66 – 5 = ................78 – 6Count backwards from 78.78 – 6 = ......82 – 4Count backwards from 82.82 – 4 = .................95 – 8Count backwards from 95.95 – 8 = .................9528 29 3025667882Let us crawl backwards and subtract.8.2 SubtractionHow many numbers?________________
182 Acme Mathematics 215 – 515 15 – 5 = 1018 – 318 18 – 3 = .................29 – 7 2929 – 7 = .................33 – 63333 – 6 = .................42 – 44242 – 4 = .................48 – 94848 – 9 = .................Subtraction is 14 13 12 11 10 easy!17 16 15• I am a student.• I study in class 2.• I do my homework.• I respect my teachers.8 – 5 = 3
Acme Mathematics 2 1832. Match the following.2 + 12 90 + 9sixty-one 10020 – 10 14the sum of 10 and 20 20the difference, 28 – 8 1099 30hundred 613. Fill in the blanks.(a) Two cows and six cows together are ................................... cows.(b) Five fingers and 10 fingers together are ........................... fingers.(c) 10 + 12 = .................(d) 9 + 6 + 8 = ..............(e) 28 + 30 = ................(f) 6 tens and 3 ones = ...............(g) 8 tens and 8 ones = ..................(h) 90 + 7= ...............(i) Total of 10 + 20 and 25 + 5 is .................
184 Acme Mathematics 2Subtract and colour the balloon according to given colour code.24 – 622 – 422 – 522 – 320 – 221 – 4 21 – 2 25 – 621 – 421 – 221 – 321 – 320 – 118 – 127 – 523 – 420 – 3=17Colour Code17 - Green18 - Red19 - blueActivity
Acme Mathematics 2 185A. Subtraction of 2 digits Numbers without borrowingActivityFill the circles.3050+20+20 +50+30+20+20+80+50+50+10+10–60–50–30–60–20–20–40–4090 20–60 30+40 50+70 50–50 20+60 40+80 60–40 40+70 60–
186 Acme Mathematics 21. Subtract by backward counting :64 – 5Count backward from 6464 – 5 = 59 59 ← 60 ← 61 ← 62 ← 63 ← 6489 – 4Count backward from 8989 – 4 = ← ← ← ←67 – 5Count backward from 6767 – 5 = ← ← ← ← ←74 – 3Count backward from 7474 – 3 = ← ← ←26 – 3Count backward from 2626 – 3 = ← ← ←89 – 6Count backward from 8989 – 6 = ← ← ← ← ← ←Classwork
Acme Mathematics 2 1872. Subtract using number line as shown :56 57 58 59 60 61 62 63 64 6564 – 7 = 5739 40 41 42 43 44 45 46 47 4847 – 6 = 73 74 75 76 77 78 79 80 81 8280 – 5 = 55 56 57 58 59 60 61 62 63 6463 – 8 = 82 83 84 85 86 87 88 89 90 9191 – 9 = 91 92 93 94 95 96 97 98 99 100100 – 7 = 1 1 1 1 1 1 1
188 Acme Mathematics 2T O3 8 – 2 1T O8 9 – 2 7T O9 5 – 3 4T O8 7 – 6 2T O8 7 – 2 3T O7 4 – 3 0T O3 6 – 1 5T O8 9 – 2 9T O2 3 – 1 11 2T O9 3 – 5 1T O3 6 – 2 4I bought 23 apples. I ate 11 of them. How many apples do I have left?Always subtract the smaller number from the bigger number. So, 23 – 11 = 12 pieces of apples are left.1. Subtract the following :Exercise 8.5
Acme Mathematics 2 1892. Count on the abacus and write the answer in the box:T O86 – 34 =T O59 – 14 =T O65 – 45 =T O87 – 36 =T O95 – 35 =T O48 – 23 =T O72 – 51 =T O47 – 33 =T O99 – 25 =T O57 – 15 =T O68 – 32 =T O75 – 21 = 54
190 Acme Mathematics 23. Subtract the followings :4 tens + 7 ones– 3 tens + 2 ones1 tens + 5 ones=4 7–321 59 tens + 6 ones– 4 tens + 3 ones tens + ones=9 6–43a9 tens + 8 ones– 4 tens + 2 ones tens + ones=9 8–42c4 tens + 7 ones– 2 tens + 5 ones tens + ones=4 7–25b5 tens + 9 ones– 3 tens + 8 ones tens – ones=5 9–38d6 tens + 7 ones– 1 ten + 2 ones tens + ones=6 7–12e
Acme Mathematics 2 1914. Subtract the following :5. Fill in the blanks. One has been done for you.Problem Minuend Subtrahend Difference48 – 23 = 25 48 23 2565 – 42 = ..........79 – 26 = ..........98 – 85 = ..........84 – 62 = ..........57 – 36 = ..........29 – 24 = ..........31 – 20 = ..........64 – 42 = ..........3 5–258 6–357 5–134 1–116 7–239 3–525 9–407 0–506 1–115 1–309 2–819 5–15
192 Acme Mathematics 26. Solve the problem and colour the object according to given colour code.42–866–4130 –766–4081–48100–7448–1477– 4488– 6593– 5950– 2534– 138– 1583– 5781– 4851–2656–24blue23green25sky32red26golden33pink34
Acme Mathematics 2 193B. Subtraction of 2 digits Number with borrowingActivityComplete the game according to the rule.RULE : Ladder → go upSlide → go down14 – 8 = 12 – 6 = 17 – 9 = 15 – 7 =16 – 8 = 14 – 5 = 12 – 8 = 14 – 6 = 11 – 3 =15 – 9 = 14 – 7 = 13 – 4 = 15 – 5 = 11 – 2 =13 – 9 = 16 – 9 = 12 – 8 = 11 – 5 = 15 – 8 =12 – 4 = 13 – 4 = 16 – 6 = 15 – 0 = 13 – 7 =10 – 6 = 12 – 3 = 20 – 1 = 15 – 6 =ENDINGSTART
194 Acme Mathematics 2Subtract 35 from 63.Look at the ones column.5 is bigger than 3. You cannot subtract 5 from 3. So, borrow 1 ten.1 ten + 3 ones = 10 + 3 = 13Now subtract the ones. 13 – 5 = 8Look at the tens column.5 tens are left.Subtract the tens. 5 – 3 = 25 is bigger than 3. Now, how to subtract?T O8 7 – 6 8T O5 7 – 3 9T O8 0 – 4 5T O2 3 – 1 5T O9 4 – 8 6T O2 9 – 1 6T O6 3 – 3 76 3 – 3 5T O1. Subtract the following :No problem. Borrow 1 ten from tens place.T O5 136 3 – 3 52 8T O3 164 6 – 2 8Classwork
Acme Mathematics 2 1952. Subtract the following :7 6 – 3 84 3 – 2 42 3 – 1 78 5 – 2 73 2 – 1 6Subtract the ones. You cannot take away 7 ones from 5 ones. So, you can borrow 1 ten from 9 tens.Here, 1 ten (10 ones) + 5 ones = 15 onesNow subtract 15 – 7 = 8 onesNow, in the tens column you have 8 tens. So, 8 – 5 = 3 tens. Write 3 in the tens column.Step-1Step-29 5 – 5 73 8T O6 4 – 2 8T O9 3 – 6 4T O5 3 – 2 7T O6 5 – 3 6T O7 5 – 3 9T O9 6 – 8 7T O3 2 – 2 5T O5 2 – 3 6T O9 2 – 6 5T O3 2 – 2 51. Subtract the following numbers :Exercise 8.65 143 6
196 Acme Mathematics 24 0 – 2 58 1 – 1 54 2 – 2 67 3 – 6 58 6 – 6 73. Solve the following word problems:In a box there were 21 sweets. Salina and her brother ate 11 of them. How many were left?2 1 total sweets– 1 1 sweets eaten sweets were left.There were 94 pages in a book. If Yadav read 25 pages, how many pages were left to be read?9 4 total pages– 2 5 pages readpages were left.In a class of 49 boys, 30 came by school bus. How many boys did not come by school bus?4 9 total boys– 3 0 boys used bus boys did not come by school bus.There were 75 plants in a flower bed. Mr. Bhandari cut 27 of them. How many were left?7 5 total plant– 2 7 plant cutplant were left.Bimash had 95 apples. He ate 18 of them. How many had been left?9 5 total apples– 1 8 apples eaten.apples had been left.Thaku had Rs 30. He spent Rs 25. How much money was left?3 0 total rupees– 2 5 spent rupees rupees was left.
Acme Mathematics 2 1974. Colour the ballon 'red' if the answer is a single-digit number, 'green' if it is a 2-digit number and 'blue' if it is 3-digit number.7 6– 4 99 2– 8 99 5– 66 5+ 6 57 9– 7 28 7– 7 8100– 8123+ 9 8Subtract the following:Step 1 : Subtract the ones.5 ones – 2 ones = 3 onesWrite 3 in the ones column.Step 2 : Subtract the tens.7 tens – 6 tens = 1 tenWrite 1 in the tens column.Step 3 : Subtract the hundreds.4 hundreds – 3 hundreds =1 hundred.Write 1 in the hundreds column. Answer : 113Subtract:H T O4 7 5– 3 6 21 1 3C. Subtraction of 3-digit numbers (without borrowing)7 8 7– 5 4 56 5 3– 2 3 25 9 9– 2 8 69 9 9– 5 9 8Classwork
198 Acme Mathematics 2Subtract the following:H T O7 8 4– 3 4 3H T O6 9 8– 5 6 7H T O5 8 4– 2 7 2H T O9 7 9+ 3 5 7D. Subtraction of 3-digit numbers (with borrowing in ones place)H T O5 7 9– 4 3 5H T O9 6 8– 7 6 2H T O6 8 9– 4 3 7H T O7 8 9– 6 3 5H T O5 6 8– 3 3 4H T O4 9 2– 3 6 0H T O3 4 3– 2 2 0H T O7 8 6– 5 7 3Step 1 : Subtract the ones.You cannot take away 7 ones from 2 ones. So, change 1 ten for 10 ones. Now, you have 12 ones. 12 – 7 = 5 Write 5 in the ones column.Step 2 : Subtract the tens.You have 7 tens left. 7 – 5 = 2Write 2 in the tens column.Step 3 : Subtract the hundreds. 7 – 4 = 3.Write 3 in the hundreds column.Answer : 325Subtract:H T O7 8 2– 4 5 73 2 5Exercise 8.78 7 6– 5 5 45 7 8– 3 4 66 7 9– 4 6 78 8 8– 2 5 7
Acme Mathematics 2 199E. Subtraction of 3-digit numbers (with borrowing in tens place)H T O6 7 2– 3 5 5H T O3 8 7– 1 9 6H T O4 9 7– 2 8 8H T O4 4 6– 2 8 4H T O8 8 4– 7 6 6H T O5 1 2– 2 9 0H T O6 8 6– 1 4 9H T O5 5 8– 3 8 5Subtract the following:Step 1 : Subtract the ones, 9 – 5 = 4Write 4 in the ones column.Step 2 : Subtract the tens. You cannot take away 7 tens from 3 tens. So change 1 hundred for 10 tens. Now, you have 13 tens. 13 – 7 = 6Write 6 in the tens column.Step 3 : Subtract the hundreds. You have 3 hundreds left.3 hundreds – 1 hundred = 2 hundreds.Write 2 in the hundreds column.Answer : 264Subtract:H T O4 3 9– 1 7 52 6 4Subtract the following:H T O5 9 4– 2 4 3H T O4 8 4– 1 7 5H T O6 5 1– 3 2 6H T O6 6 3– 1 5 6H T O7 6 7– 1 4 9H T O5 7 1– 2 3 2H T O6 1 8– 1 0 9H T O9 6 3– 5 5 4Exercise 8.8Exercise 8.9
200 Acme Mathematics 2H T O8 2 4– 2 3 0H T O8 0 8– 1 8 7H T O9 3 8– 5 1 6H T O9 2 7– 4 9 7H T O6 3 9– 2 4 4H T O6 7 0– 2 9 0H T O7 1 5– 1 8 4H T O5 0 8– 2 7 21. Subtract the following:5 5 8– 3 8 55 4 5– 2 7 67 3 5– 3 7 99 1 2– 6 4 59 6 5– 6 8 75 3 6– 2 6 33 2 1– 2 4 76 6 5– 4 8 87 3 8– 2 6 95 6 5– 3 9 96 2 6– 2 8 77 8 3– 3 8 8Exercise 8.10