76Guess...To win India needs(a) more than 100 runs(b) less than 100 runsCricketMatchInacricketmatch,SriLankamade235runs.Indiahasmade123runs.Howmanymore runs does India need to win?To win India must make 236 runs.RunsIndianeedstowin:236 123 = ?Fun with Give and Take6Runs to winRuns by IndiaRuns neededLet's subtractby first taking awaysfrom sTo win India must make 113 runsSo we are left with2015-1677Money inGeeta's purseCost of book Try it YourselfGeeta had Rs 368 in her purse.She bought a book for Rs 123.How much money is left in her purse?Money left in her purse is Rs 368 Rs 123 = ?The teacher should discuss with students which number is to be placed above and why.(a) more than 200(b) less than 200Guess...Money left in Geeta's purse is2015-1678MoneyNabeela hadNow we have fifteen sWe cannot take seven s from five sSo borrowisCost ofGhee Can You Help Nabeela?Nabeela'smothersenthertothemarkettobuysomethings.She gave her Rs 245. Nabeela bought 1 kg ghee for Rs 127. TheshopkeepergaveherbackRs98.(Kilogramiswrittenaskg.)Let's find out.Didtheshopkeepergivehertherightamount?2015-1679How much more money should the shopkeeper give Nabeela?TheshopkeeperhadtogiveNabeelaRs118.So tokens left areNowtakeaways.Only one left.From fifteens takeaway sevens. Onlyeight s left.Nowtakeaways.Only one left.2015-16801 03531 7411PracticeTime1. Baby tortoise is 33 years old. Mummy tortoise is 150 yearsold.HowmuchyoungerisBabytortoisethanMummytortoise?Age of Mummy tortoise: 150 yearsAge of Baby tortoise: 33yearsBaby tortoise is 117 years younger than Mummy tortoise.2. Arvind has read 69 pages of a story book. Gouri has read 95pages of that story book. Who has read more pages and howmanymore?Teachers should motivate students to decide which operation they have to use to solve a problem.More such exercises can be given where students decide the appropriate operation.59962015-16813. Reena noted the electricity meter readings of her house. Lastmonth's reading was 118 units. This month's reading is 193units.Howmuchelectricitydidsheuseinonemonth?Thismonth'sreading Last month's reading She used units of electricity.4. Khushboo bought a shirt for Rs 125 and trousers for Rs 165.Howmuchmoneydidshespendaltogether?Bought a shirt for Rs Bought trousers for Rs She spent Rs altogether.191 183161 2 552015-16825. Solvethefollowing:6.Checkyouranswersyourself:474 136139 110325 204237 +213135 +146642 41349+ 20312+2834034028312236 114122122+ 11423686 5812+ 2439 1014+ 317 32015-1683CheckRashi'ssubtractionusingaddition.Givehera forevery right answer.7. Fillinthemissingnumbersinthecolouredboxes.4 6 81 3 92 2 14 6 8 1 3 9 2 2 1+35 6 24 711 91 4 1+2 4 33 8 4++

38 42 4 31 4 1If I take one moremala she will have40 beads left!The teacher should encourage students to discuss and correct the wrong answers. Children loveto correct others' mistakes (for a change!) and also learn from this process.7 83566302424 3 82211372015-1684429+10+20Room46633RoomLet's Deliver LettersPostman Uncle is ill today. Let's deliver the letters for him.The teacher should encourage students to solve the problems mentally using the above chart.Write the correct room numbers on the letters. Then find theroomsintheabovebuildingandcirclethem.Make a circle on room 455.430+20+13Room426+38Room461+25Room480 9Room467+22Room430+15Room45620Room436410+13+11Room445+10Room455467+11Room45019Room452+18Room49823Room431441432481433471434 435490436 437 438 439 440442 443 444 445 446 447 448 449 4504604704804894594694794884584684784874574674774864564664764854554654754844544644744834534634734824524624724514612015-1685Find the Missing NumbersLook at the number patterns. Write the missing numbers.a) 100, 200, 300,,, 600, b)c) 50, 100, 150, 200,,,, d)e)f ) 280, 260, 240,,,, g) 125, 150, 175, 200,, 250,, 800 700? ?400900300250200 ? ? ?25 ? 35 45 ? ?2015-168680 30 5 = 50 5 = 4545 + 35?45 + 30 + 5?MentalMathsB.C.D.505075+=120320320=+=60110=+=5035804545=+=A.2015-16871. Indu's pencil is 15 cm long.Jyoti's pencil is 8 cm long.Whosepencilislonger?Howmuchlonger?2. Ask your Papa or MummyPrice of 1 kilo salt Price of 1 kilo sugar Whichoneismorecostly?How much more does it cost?3. Ajay cooked chapatis in 25minutes.Thenhemadedaalin15minutes.Howmuch time did he take tocookboththings?4. Chanchalsellsschoolsweaters.In2daysshesoldsomered,blueandgreycolouredsweaters.Lookattheaboveandanswerthefollowing:(a) How many grey sweaters did Chanchal sell in 2 days?(b) Did she sell more red sweaters than blue sweaters in 2 days? Sweaters sold on first daySweaters sold on second day38 66 7440 23 89Red BlueGreyPracticeTime2015-1688(c) Howmanyredandgreysweatersdidshesellonthefirstday more than 120 or less than 120? Tick () the rightanswer.more than 120 less than 120(d) How many sweaters in all did she sell on the second day more than 140 or less than 140?Tick () the right answer.more than 140 less than 140She looked at the prices and said to her grandpa (a) Ghee is Rs 102 rupees costlier than biscuits. (b) Price of oil and ghee altogether is more than Rs 200. (c) Price of ghee and 10 kg rice is less than Rs 300. (d) Oil costs Rs 40 more than a pack of biscuits. Is Sangeeta right? Mark () or ( ) in the box.Canyoufindthiswithoutusingpaperandpencil?5. Is Sangeeta right?Sangeetawenttothemarket with her grandpa.2015-1689StoryProblemsNishaandSonuweremakingstoryproblems.Nishasaid13 boys and 14 girls in a class. Sonu, can you make a problemon it?Youcanalsomakestoryproblemswithyourfriends.Lookateachpictureandthewordsnexttoit.Writeyourproblembelowit.Sonuwrote There are 13 boys and 14 girls in a class.How many students are there altogether?A. 36 men and 52 womenwaitingfortheirturn2015-1690B. Wehaveourmid-daymealin20minutesandplayfor15minutes.C. Thepostofficeis1kilometrefromShahid'shomeand2kilometresfromhisschool.D. Bunty has read 27 books and Babli has read 34 books.2015-1691Count to Subtract!Dolmabought4dozen(48)bananasandgaveonetoeachofherfriends.13bananaswereleft.Howmanyfriendsgotabanana?As you know, this can be found by counting forward from 13. Itis easier to count in jumps of 10. You can also use Kittu's homeshownonpage29tosolvetheseproblems.48 1310 10 10 513 23 33 43 4810 + 10 + 10 + 5 = 35So 48 13 =35B. 60 45 = ?45 50 605 105 + 10 = So 60 45 = C. 80 59

60 70 8010 10591 + + = So 80 59 = D. 85 63 = E. 84 69 = F. 60 20 = G. 90 50 = A. 56 37 =?37 47 57 5610 1010 + 10 1 = So 56 37 = 70 80 902015-16923 33 333 33 333 33 333 33 33 3 33 333 33 333 33 33 3 33 33All the King's Horses....Oncetherewasakingwhocouldcountonlyupto9.Uptowhatnumbercanyoucount?The king loved horses. But he could never count all of them. Hekept them in such a way that he needed to count only up to 9fromeachside.How many horses in all did the king have? 2015-16932 22 2252 22 222 22 22 552 22 22 5One day a visitor with 4 horses came there. It was getting darkso he wanted to stay there at night. But the horse-keeper wasscared.Ifthekingsawtheseextrahorseshewouldbeveryangry!Thevisitorsaiddonotworry.Thekingwillneverknow.Sohearrangedthehorseslikethis:How many horses are there now? At night the king came to count the horses. Along each side hecounted9horses.Ah!That'sfinehesaid.Thenhehappilywenttosleep.2015-16944 44 4414 44 444 44 44 114 44 44 1(Based on a Tamil folk story from the book "Numeracy Counts!")What numbers are we?If you add us both you get 100.The difference between us is also 100.Inthemorningtheclevervisitortriedanothertrick.Hetookouthisown4horses.Buthealsoranawaywithsomeoftheking's horses. He left the king's horses standing in this way.How many horses are now left? How many of the king's horses were taken away?PuzzleThesillykingdidnotfindany horse missing. Can youhelphim?2015-16