Transcription
SeriesEStudentMy nameAddition andSubtraction
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Series E – Addition and SubtractionContentsTopic 1 – AddiƟon mental strategies (pp. 1–15)Date completed number complements// doubles and near doubles// bridge to ten// jump strategy// split strategy version 1// split strategy version 2// applying the split strategy// compensaƟon strategy// category match – apply// addiƟon and subtracƟon// subtracƟon strategy review// jump strategy// split strategy// compensaƟon strategy// subtract to zero – apply// subtracƟon grid puzzles – solve//Topic 2 – SubtracƟon mental strategies (pp. 16–27)
Series E – Addition and SubtractionContentsTopic 3 – Wri en methods (pp. 28–35)Date completed 3 digit addi on with regrouping// 3 digit subtrac on with regrouping// 4 digit addi on// addi on and subtrac on challenges// biggest total – apply// claim the difference – apply// coin combina ons// finding change// using money// calculate the change – apply//Topic 4 – Money (pp. 36–41)Series Author:Nicola HerringerCopyright
Addition mental strategies – number complementsTwo numbers that add together are called complements.12 and 8 are complements to 20 because 12 8 2035 and 65 are complements to 100 because 35 65 1001Loop the complements in each set:a Complementsto 20. There arethree to find.The first onehas been donefor you.27414101610 128b Complementsto 50. Thereare eight tofind:24 38 15 3517 4554033 18 32 10Complete these complement webs. Start with the centre number and subtract.Write your answers in the –6050–25b50–15––753550326 12 30 20–5050–30100–2050–90–2550Show how knowing the complements to 20, 50 and 100 makes adding easier. Youmay want to loop the complements first. The first one has been done for you.a 80 20 15 5100 20 120 b 18 2 30 20 10 10 c 25 25 40 30 20 10 d 15 35 20 30 10 12 Addition and SubtractionCopyright 3P LearningE1SERIESTOPIC1
Addition mental strategies – number complements4Complete the complements to 50:ac 25g51446 50b 50d 50f 50h 32 50 50 71728 50 50 Complete the complements to 100:a 54 100bc 46 100d33 100 100f25 100 100he62 g6 e3845 2248 100 100Complete the addiƟon crosses where the numbers add to 100 verƟcally andhorizontally. The rules are, they must be symmetrical and only contain mulƟples of 5.1525a4551005b2510025252E1SERIESTOPICAddition and SubtractionCopyright 3P Learning50
Addition mental strategies – doubles and near doublesDoubles facts are the same number added together.3 3 6 is the same as saying double 3 is 6.Near doubles is when you use the doubles fact and then adjust either by addingor subtracƟng.See: 6 7Think: double 6 11Circle all thedoubles facts.The first two arecircled for you.Next, shade all thedoubles facts 1,then the doublefacts –1: 0123456789001234567891123456789 10223456789 10 1133456789 10 11 124456789 10 11 12 13556789 10 11 12 13 1466789 10 11 12 13 14 157789 10 11 12 13 14 15 16889 10 11 12 13 14 15 16 1799 10 11 12 13 14 15 16 17 18a double 1 b double 1 1 c double 1 – 1 double 2 double 2 1 double 2 – 1 double 3 double 3 1 double 3 – 1 double 4 double 4 1 double 4 – 1 double 5 double 5 1 double 5 – 1 double 6 double 6 1 double 6 – 1 double 7 double 7 1 double 7 – 1 double 8 double 8 1 double 8 – 1 double 9 double 9 1 double 9 – 1 Addition and SubtractionCopyright 3P LearningE1SERIESTOPIC3
Addition mental strategies – doubles and near doubles2Complete each near double diagram. Start with the doublein the centre and work clockwise. You will need to think indoubles and then adjust.20 22 23 19 a21 19 20 18 20 20 20 19 20 21 20 17 21 22 Start by looking at thefirst number.For 51 48, think double50 add 1 and then subtract2 so the answer is 99.50 49 53 49 b51 47 Start by looking at thefirst number.For 21 18, think double20 add 1 and then subtract2 so the answer is 39.50 47 50 50 52 49 50 51 51 49 50 46 3Show how you would explain to someone how to add each of these usingnear doubles.a 30 32b 25 23c 100 974E1SERIESTOPICAddition and SubtractionCopyright 3P Learning
Addition mental strategies – bridge to tenBridge to ten is when we count on to the next 10 and then add what is leŌ.122 12 134 8 412212130134How many to the next ten? The first one has been done for you. 5a145 b243 c558 d167 e346 f179 150Use the number lines to bridge to ten: a 253 15 253b 464 14 464c 671 17 671Addition and SubtractionCopyright 3P LearningE1SERIESTOPIC5
Addition mental strategies – bridge to ten3Write a problem that matches the number line: a b c4 3 9 6 8 4 7 Complete these addiƟon grids by bridging to the next ten in your head:a 3567858628738598429856625217636814612b 166E1SERIESTOPICAddition and SubtractionCopyright 3P Learning
Addition mental strategies – jump strategyWhen we add, we can use the jump strategy to help us. Look at 57 22:1 First we jump up by the tens.2 Then we jump up by the ones. 10 1057 267777957 22 7912PracƟse jumping in tens along the arrows:a12b53c123Use the jump strategy to add these: 10 10 10 10 10 2a 78 52 7888b 115 44 c 185 63 Addition and SubtractionCopyright 3P LearningE1SERIESTOPIC7
Addition mental strategies – jump strategy3Below are some number lines that only show the jumps. Complete the numberline for the problem that matches and then write the complete problem.187 544a b c Use the jumpstrategy toadd these:DaySaturdaySunday179 62Red16543Shirt salesGreen829878 53Striped5565a How many red shirts were sold over the weekend? b How many green and striped shirts were sold on Saturday? c How many plaid shirts were sold over the weekend? 8E1SERIESTOPIC Addition and SubtractionCopyright 3P LearningPlaid13536
Addition mental strategies – split strategy version 1When adding large numbers in our heads, it can be easier to split one of thenumbers into parts and add each part separately.40112 46 112 40 152 152 6 15861PracƟse separaƟng these numbers into tens and ones. The first one has been donefor you.a 4840b 63c 52d 2782PracƟse addingthe tens tothese numbers: 20503070601232143Use the split strategy with these problems. The first one has been done for you.a 48 5350 48 50 98 98 3 1013b 65 38 c 112 25 d 332 66 Addition and SubtractionCopyright 3P LearningE1SERIESTOPIC9
Addition mental strategies – split strategy version 2Here is another way to use the split strategy.42 32 (4 tens 3 tens) (2 ones 2 ones) 7 tens 4 ones 741Use this way to add these: a 63 37 (tens ) (tens ones)ones tensones b 88 23 ( tens ) (tens ones)ones tensTen ones are 1 ten.So if I have 3 tens 10 ones,I really have 4 tens or 40.ones c 56 15 ( tens ) (tens ones)ones tensones d 65 28 ( tens ) (tens ones)ones tensones 2Use either version ofthe split strategy tocomplete this table: 2378453910E1SERIESTOPICAddition and SubtractionCopyright 3P Learning635536
Addition mental strategies – applying the split strategy1Complete these addiƟon wheels with the split strategy:55313426 212 46a52b7814 128 61683127The split strategy is useful when adding three 2 digit numbers.Try adding tens, then the ones and recording it this way:61 43 44 14 tens 8 ones 140 8 14823Record these place value amounts:a 8 tens b 17 tens c 15 tens d 5 ones e 12 tens f 16 ones At circus school, a compeƟƟon was held to see who could stay on a unicycle thelongest. The Ɵme was recorded in seconds. Using the split strategy, add up eachperson’s Ɵme. The first one has been done for you.Time inNames secondsWorkingTotal inseconds3 tens 9 ones39a Lizzie22, 14, 3b Dan23, 4, 11c Lily21, 6, 14d Jo20, 8, 12The winner is:e Julio4, 22, 12Addition and SubtractionCopyright 3P LearningE1SERIESTOPIC11
Addition mental strategies – compensation strategySomeƟmes we round one number in the problem to make it easier to do inour heads. Then we adjust our answer to compensate:23 19 4223 20 – 143 – 112I rounded up by 1, 42 so I subtract 1.PracƟse rounding:a148 b39 c47d109 e96 f199 Use the compensaƟon method with these problems. Round the second number upto the closest ten. Compensate by subtracƟng.a 32 29 b 55 3832 30c 66 19 E1SERIESTOPIC 55 40d 22 3966 12 22 Addition and SubtractionCopyright 3P Learning
Addition mental strategies – compensation strategy3Now let’s try the compensaƟon method with rounding the second number down.Round these numbers down to the closest ten. Compensate by adding.a 75 22b 45 41 75 2045 40 c 26 32 d 66 53 26 When weround downwe compensateby adding.When weround up wecompensateby subtracƟng.66 4 Use the compensaƟon method to solve this riddle.What vehicle is spelled the same forwards as it is backwards?Match the leƩer to the answer in the grid at the boƩom.a 125 48 Ab 115 41 Rc 55 51 Cd 715 28 E156173106743106173Addition and SubtractionCopyright 3P Learning156E1SERIESTOPIC13
Category matchGeƫngreadyWhatto doapplyThis is a game for two players. Each player will need tocopy and cut out the cards on page 15 as well as thegame board below.copyEach player cuts out a set of the cards. Join both sets and shufflewell. Place face down into one pile in the centre. Each player turnsover four of the digit cards and places each digit on their gameboard. Digit cards can’t be moved once they have been placed.Players then use a mental strategy to work out the answer andscore points according to which category the answer fits into.Some answers may fit into more than one category.Ends in even number1 pointEnds in odd number2 pointsLess than 505 pointsGreater than 15010 pointsMul ple of 510 pointsBetween 120 and 1405 points 14E1SERIESTOPICAddition and SubtractionCopyright 3P Learning
Category matchapply 9 8 7 6 54 3 2 1 99 8 7 6 54 3 2 1 94 3 2 1 94 3 2 1 9Addition and SubtractionCopyright 3P LearningE1SERIESTOPIC15
Subtraction mental strategies – addition and subtractionKnowing one addiƟon fact means you also know two related subtracƟon facts.Because 7 3 10 you know that 10 – 7 3 and 10 – 3 71Make a group of facts for each pair of numbers. The first one has been done for you.15a35b4555c7327e12010f1351015 35 5050 – 15 3550 – 35 15105d21615Complete each number trail:a 10150 – 15 50 30 b– 50200 25 – 30 55 c99 11 50 50 – 20 d76 24 35 15 – 25 E2SERIESTOPICAddition and SubtractionCopyright 3P Learning
Subtraction mental strategies – subtraction strategy reviewLook for pa erns: 6 – 2 4 so 60 – 20 40 and 600 – 200 40072 – 9 63 so 62 – 9 53 and 52 – 9 43Count on:When numbers are close together, you can count on to findthe difference. 420 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40Complements:35 65 100 so 100 – 35 6512 8 20 soNear doubles:1See: 15 – 720 – 8 12Think: (14 – 7) 1This hundred grid makes it easier to see subtracƟon paƩerns. Use it to completethe sets.12345678Set 19 1011 12 13 14 15 16 17 18 19 2021 22 23 24 25 26 27 28 29 3031 32 33 34 35 36 37 38 39 4041 42 43 44 45 46 47 48 49 5051 52 53 54 55 56 57 58 59 6061 62 63 64 65 66 67 68 69 7071 72 73 74 75 76 77 78 79 80Set 217 –9 21 –6 27 –9 31 –6 37 –9 41 –6 47 –9 51 –6 57 –9 61 –6 67 –9 71 –6 81 82 83 84 85 86 87 88 89 9091 92 93 94 95 96 97 98 99 1002Extend these subtracƟons according to the paƩerns:a9 – 6 90 – 60 900 – 600 b14 – 8 140 – 80 1 400 – 800 c24 – 14 d69 – 32 Addition and SubtractionCopyright 3P LearningE2SERIESTOPIC17
Subtraction mental strategies – subtraction strategy review34Use counƟng on to complete these:a 32 – 29 b 33 – 28 c 34 – 27 d 71 – 68 e 82 – 76 f 73 – 69 g 83 – 77 h 112 – 109 Complete these funcƟon tables using counƟng on:aInRule OutInbInc1028712310481– 118108124Complete this crossnumber puzzle. Usingcomplements to 100will help.Across1 100 – 80 – 96851011Rule Out– 7883234571068119128 100 – 49 Down1 100 – 78 7 100 – 62 2 100 – 89 9 100 – 61 2 100 – 88 8 100 – 46 3 100 – 5 10 100 – 52 3 100 – 2 9 100 – 65 4 100 – 28 11 100 – 66 4 100 – 24 5 100 – 22 12 100 – 75 5 100 – 29 7 100 – 64 18Rule Out1201265i 201 – 196 E2SERIESTOPIC6 100 – 11 Addition and SubtractionCopyright 3P Learning
Subtraction mental strategies – subtraction strategy review6Use your knowledge of doubles and near doubles to complete these subtracƟontables. The first one in each has been done for you.aSeeThink19 – 9 c(18 – 9) 131 – 16 141 – 70 99 – 50 71 – 35 87 – 44 SeeThinkThink(16 – 8) – 115 – 8 201 – 100 26 – 12 7SeebdSeeThink24 – 13 (24 – 12) 252 – 25 48 – 25 68 – 33 70 – 36 104 – 51 78 – 40 (26 – 13) – 2Complete this near double web, which is based on the subtracƟon double in thecentre. Start in the centre and work clockwise:Start by looking at thefirst number.For 99 – 51, think100 – 50 subtract 2 48101 – 50 99 – 49 99 – 51 100 – 49 100 – 50 98 – 50 100 – 51 99 – 50 97 – 50 Addition and SubtractionCopyright 3P LearningE2SERIESTOPIC19
Subtraction mental strategies – jump strategyWhen we subtract, we can use the jump strategy to help us. Look at 99 – 42:1 First we jump back by the tens.2 Then we jump back by the ones.–257 59– 10Start– 1069– 107999 – 42 571Solve these using the jump strategy:a 125 – 42 b 168 – 36 c 335 – 54 d 245 – 45 20E2SERIESTOPICAddition and SubtractionCopyright 3P Learning– 108999
Subtraction mental strategies – jump strategy2It’s inventory Ɵme at the sporƟng goods store. Use the jump strategy to work outhow many items of each type have been sold.ItemStarted with Amount leŌBaseballs25445Soccer balls18658Hockey sƟcks14565Basketballs16534Solda Baseballs– b Soccer balls– c Hockey sƟcks– d Basketballs– Addition and SubtractionCopyright 3P LearningE2SERIESTOPIC21
Subtraction mental strategies – split strategyWhen subtracƟng large numbers in our heads it can be easier to splitthe number to be subtracted into parts and work with each part separately.10030255 – 132255 – 100 155213PracƟse spliƫng numbers into hundreds, tens and ones:b 675c 732d 834Complete these subtracƟon trails:– 200– 20 – 300 – 10 – 100– 50 – 20 – 50 a768 b463 Use the split strategy with these problems:a 456 – 212456b 378 – 165– 200 378 – 100 –10 – 60 –2 – 5 – 212 So, 378 – 165 So, 45622125 – 2 123255 – 132 123a 4822155 – 30 125E2SERIESTOPICAddition and SubtractionCopyright 3P Learning
Subtraction mental strategies – split strategy4Try these subtracƟons with the split strategy:b 834 – 21 a 479 – 45 So, 834 – 21 So, 479 – 45 d 567 – 232 c 637 – 312 So, 567 – 232 So, 637 – 312 5Solve these pyramid puzzles using any strategy you like. The two bricks add tosupport the number on top. For example in puzzle a, 22 23 45.a175b3704522c1352322080d555302809512040Addition and SubtractionCopyright 3P LearningE2SERIESTOPIC23
Subtraction mental strategies – compensation strategySomeƟmes we round one number in the problem to make it easierto do in our heads. Then we adjust our answer to compensate:125 – 49 76125 – 50 175 112 76I rounded up by 1, whichmeans I subtracted 1 extraso we need to add 1 back.I took off1 extra soI have toadd 1 back.Round these numbers to the closest ten. Then show how you rounded bysubtrac ng or adding the difference. The first one has been done for you.a80– 278 b 59 c 62 d23 e 87 f 99 g 103 h 21 i 88 Solve these subtrac on problems using compensa on. Show your working.a 136 – 29136 – 30 b 145 – 38 1c 156 – 39145 – 40 2d 184 – 48156 – 184 – ConƟnued on page 25.24E2SERIESTOPICAddition and SubtractionCopyright 3P Learning
Subtraction mental strategies – compensation strategyConƟnued from page 24.2Solve these subtracƟon problems using compensaƟon. Show your working.e145 – 29 f145 – 30g365 – 423 h176 – 69250 – 32 Answer these subtracƟon problems to solve the riddle below:What swirls, loops, and circles on your fingerƟps, yet never moves?a65 – 29 Fb 145 – 32 Uc 175 – 61 Ed86 – 59 Oe 180 – 48 If 150 – 32 Ng96 – 42 Rh75 – 33 Gi 155 – 49 Yk 185 – 19 Tl 370 – 28 Sj 166 – 55 P106 27 113 5436 132 118 42 114 54 111 54 132 118 166 342Addition and SubtractionCopyright 3P LearningE2SERIESTOPIC25
Subtract to zeroGeƫngreadyWhatto doSample game:Player 1 covers20 with a counterand states thesubtrac on fact:100 – 20 80Player 2 covers30 with a counterand states thenext subtrac onfact:80 – 30 50Player 1 thencovers 50 andreaches zerofirst, so winsthe round.26E2SERIESTOPICapplyThis is a game for two players. You will need a copy ofthis page and 25 counters between you.copyPlayer 1 covers a number on the grid with a counter and subtractsthis number from 100. Player 2 then covers a number on the gridwith a counter and subtracts this number from Player 1’s answer.Play con nues un l a player is able to pick one of the remaininguncovered numbers to equal zero. If play con nues withoutanyone reaching zero, the lowest difference wins.25 10 15 20 1010 50 30 10 2540540 10 1010 35 10 15 1050 105Addition and SubtractionCopyright 3P Learning10 45
Subtraction grid puzzlesWhatto dosolveComplete these subtracƟon cross number puzzles:a125–– –53– b75– 350 –36 –228 ––165– – –117Addition and SubtractionCopyright 3P Learning1454 68E2SERIESTOPIC27
Written methods – 3 digit addition with regroupinge:730H1 1This is the wriƩen method for addiƟon when regrouping.First, esƟmate the answer to the nearest ten:530 200 730Add the ones: 4 7 11 ones.Think of this as 1 ten and 1 one.Write the 1 in the ones column and put the 1 in thetens column.Add the tens: 3 9 1 13 tens.Write 3 in the tens column and 1 in the hundreds column.Add the hundreds: 5 1 1 7 hundreds.Is our answer reasonable? Yes, because it’s close toour esƟmate.TO3419773115PracƟse esƟmaƟng answers by rounding to the nearest ten. The first one has beendone for you.QuesƟonEsƟmatea 682 1792QuesƟonEsƟmateb 271 119680 180 860c 359 222d 378 119e 587 398f 412 98g 189 108h 911 207Add these 3 digit numbers using the wriƩen method. First, esƟmate to the nearest ten.e:a e:HTO354217b e:HTO628213c HTO364228ConƟnued on page 29.28E3SERIESTOPICAddition and SubtractionCopyright 3P Learning
Written methods – 3 digit addition with regroupingConƟnued from page 28.2Add these 3 digit numbers using the wriƩen method:e:d e:HTO263139e e:g 3e:HTO344459f e:Th HTO262549Th HTO252249Th HTO349387e:Th HTO629289h i Solve these word problems using the wriƩen method:a At the office supply store,456 blue pens were sold onSaturday and 458 red penswere sold on Sunday.How many pens were soldthat weekend?HTOThHT b A train le the sta on with389 people on board and thenanother 678 people got onover the next three stops.How many passengers wereon the train altogether?O Addition and SubtractionCopyright 3P LearningE3SERIESTOPIC29
Written methods – 3 digit subtraction with regrouping1Subtract these 3 digit numbers using the wriƩen method. Start by wriƟng youresƟmate. EsƟmate to the nearest 10.e:a–HTO652327b–You can use apiece of scrappaper to esƟmateyour answer tothe nearest dfe:e:HTO882666Addition and SubtractionCopyright 3P Learningh–
Written methods – 3 digit subtraction with regrouping2This sign shows the distancesof towns along a highway fromwhere the sign is. Find thedifference between these places.Find thedifferencemeans tosubtract.a What is the distance betweenRinger and Normanville?HTShowtownRoperRingerEagle BayNormanville971 km893 km692 km595 km567 kmb What is the distance betweenRoper and Eagle Bay?OH–TO–kmkmc What is the distance betweenShowtown and Ringer?HTd What is the distance between Roperand Normanville?HOTO––kmkmAddition and SubtractionCopyright 3P LearningE3SERIESTOPIC31
Written methods – 4 digit addition1Add these 4 digit numbers:a d 2 O33531021Th HTO36311357b e Th HTO25465431Th HTO12525333Th HTO42452517Th HTO31873059c f Th HTO45242164Th HTO24325346Th HTOTh HTO66381236b c3429 1139Th HTO32962158Add these 4 digit numbers by regrouping:a 32TAdd these 4 digit numbers by regrouping:a3Th HTh HTO24662187E3SERIESTOPICb Addition and SubtractionCopyright 3P Learningc
Written methods – addition and subtraction challenges1Write the numbers which are above each problem in the correct place:a343686–d33632541752382495 367732 cb94–822443Solve these. The same symbol means the same number.X 3 Xa X X 41c–089 8 3 21 2629y1y144b X 1d– Addition and SubtractionCopyright 3P LearningJ4123J306y J E3SERIESTOPIC33
Biggest totalGeƫngreadyapplyThis is a game for four players. Each player will need tocopy and cut out the digit cards below. They will alsoneed the addiƟon frame on this page and a piece ofscrap paper to write the answer on.copy Whatto do0123456789Choose one person to be the caller.This person calls out the single digits above, randomly one at a Ɵme.The other players place the digits in a box in the frame below, inany order. Players must think carefully about which square to placethe digit, in order to create the largest total.When all the players have filled in the frame, they completethe addiƟon.The highest answer scores a point. Play the best out of 5. 34E3SERIESTOPICAddition and SubtractionCopyright 3P Learning
Claim the differenceGeƫngreadyapplyThis is a game for two players. Each player will need tocopy and cut out the digit cards. To play you need toshare the number grid on this page. Each player shouldhave a piece of scrap paper to write the answer on andthree counters in the same colour, but different to theother player.Whatto docopyThe aim of the game is to claim any 3 numbers on the grid below.Each player lays their digit cards upside down in front of them.They then turn over four of the cards to form two 2 digit numbersand find the difference.If the answer is on the grid, they claim it by placing a counter onthe number. If it’s not, they can have a chance at rearranging thefour cards they turned over, to create a number on the grid. If theycan’t do this, it’s the next player’s turn.Digit cards012345 14422212311359183129112728617Addition and SubtractionCopyright 3P LearningE3SERIESTOPIC35
Money – coin combinationsIt is important that you are able to recognise these bills and coins so that youare able to spend and save your money wisely.1abcdE4SERIESTOPICAddition and SubtractionCopyright 3P LearningUsed with the permission of the Bank of Canada. Coin image 2012 Royal Canadian Mint – All Rights Reserved.36Calculate the total of each group of cash:
Money – coin combinations2Make up each amount below using bills and coins in two different ways:a Show 20:b Show 50:c Show 100:Addition and SubtractionCopyright 3P LearningE4SERIESTOPIC37
Money – finding changeWhen you buy something and you don’t have the exactcombina on of bills and coins, you can pay with a larger amountand get the difference back. This is called change.If I paid for these flowers with 20, my change would be 8.1Find the change for each amount below. You could bridge to the next dollar andcount on or use a wriƩen subtracƟon. Show all your workings:aI had 100. I spent 68.bI had 50. I spent 22.Change Change cI had 20. I spent 16.50.dI had 120. I spent 60.Change eChange I had 100. I spent 75.fI had 50. I spent 42.Change 38 12E4SERIESTOPICChange Addition and SubtractionCopyright 3P Learning
Money – using moneyWhen you plan a party, you usually buy things such asfood, drink and party favours. It’s a good idea to set abudget before you go shopping so that you don’t spendtoo much.1Here is a price list of party items:FoodDrinkParty favoursVegetable rolls 3.20Orange juice 2.7510 party hats 3.80Fruit salad 8.95Lemonade 3.1010 balloons 1.90Sandwiches 7.65Water 3.254 game prizes 5.60a Which two items of food and drink could I buy for less than 10? Show the change.Change b Maxine bought a type of party food.If her change was 2.35 and shepaid with a 10 bill, what did she buy?Heidi’s shopping list:2 packs of vegetable rolls4 fruit salads .10 party hats .c Look at the price lists for the partyitems at the top of this page.Use a calculator to add up the totalamount on Heidi’s shopping list.20 balloons .Orange juice .Lemonade.d Heidi’s budget is 50. Suggestsomething to take off the total.Addition and SubtractionCopyright 3P LearningTotalE4SERIESTOPIC39
Calculate the changeGeƫngreadyapplyThis is a game for three players. You will need a die and eachplayer needs a copy of page 41 to record the change.You may wish to make extra copies of page 41 so you can play again.Whatto doThe aim of the game is to end up with the most amount of moneyat the end of each round.Roll the die to find what you are calculaƟng change for. Recordthe number you rolled and the change in the table. Take turns.When you have filled in the table for each round, calculate thetotal amount of change. The most change scores 5 points. Playfor three rounds to decide the overall winner.Dienumber40E4SERIESTOPICAmountyou haveAmount you spend 20You spend 5.25 on a card for a friend. 15You spend 7.50 on school supplies. 5You buy some snacks for 3.85. 5You spend 4.25 downloading songsfrom the internet. 10A trip to the movies costs 7.80. 20You buy a book for 17.80.Addition and SubtractionCopyright 3P Learning
Calculate the changeapplycopyRound 1Number rolledChangeTotalRound 2Number rolledChangeTotalRound 3Number rolledChangeTotalAddition and SubtractionCopyright 3P LearningE4SERIESTOPIC41
Series E – Addition and Subtraction Contents Topic 1 – Addi on mental strategies (pp. 1–15)
