fractions of an amount complete the calculations. · fractions of an amount 1 annie and mo are...

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Fractions of an amount 1 Annie and Mo are finding fractions of amounts. a) Annie is trying to find 1 5 of 45 She draws this bar model. 45 ? How does the bar model represent the calculation? What is 1 5 of 45? b) Mo is trying to find 3 5 of 45 45 ? How does the bar model represent the calculation? What is 3 5 of 45? c) What is the same and what is different about Mo and Annie’s questions? 2 Complete the calculations. a) 1 3 of 27 = b) 1 3 of 72 = c) 1 3 of 90 = 2 3 of 27 = 1 6 of 72 = 2 6 of 90 = 3 3 of 27 = 1 12 of 72 = 3 9 of 90 = What patterns do you notice? 3 Match the calculations to the correct amounts. 5 8 of 48 32 2 3 of 48 40 5 6 of 48 30 3 4 of 48 36 © White Rose Maths 2019

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Page 1: Fractions of an amount Complete the calculations. · Fractions of an amount 1 Annie and Mo are findingfractions of amounts. a) Annie is trying to find 1 5 of 45 She draws this bar

Fractions of an amount

1 AnnieandMoarefindingfractionsofamounts.

a) Annieistryingtofind 15

of45

Shedrawsthisbarmodel.

45

?

Howdoesthebarmodelrepresentthecalculation?

Whatis 15

of45?

b) Moistryingtofind 35

of45

45

?

Howdoesthebarmodelrepresentthecalculation?

Whatis 35of45?

c) WhatisthesameandwhatisdifferentaboutMoand

Annie’squestions?

2 Completethecalculations.

a) 13

of27= b) 13

of72= c) 13

of90=

23

of27= 16

of72= 26

of90=

33

of27= 112

of72= 39

of90=

Whatpatternsdoyounotice?

3 Matchthecalculationstothecorrectamounts.

58

of48 32

23

of48 40

56

of48 30

34

of48 36

©WhiteRoseMaths2019

Page 2: Fractions of an amount Complete the calculations. · Fractions of an amount 1 Annie and Mo are findingfractions of amounts. a) Annie is trying to find 1 5 of 45 She draws this bar

©WhiteRoseMaths2019

4 Write<,>or=tocomparethecalculations.

a)57of56

58of56 c)

23of63

58of64

b)47of56

58of56 d)

710of350

57of350

5 165childrenandadultsgoonaschooltrip.

Twothirdsofthepeoplearechildren.

a) Howmanyadultsareontheschooltrip?

b) 35

ofthechildrenareboys.

Howmanyboysareontheschooltrip?

c) 710

ofthechildrenhaveanappleforlunch.

Howmanychildrendonothaveanappleforlunch?

6 Ticktheoddoneout.

Explainyourchoice.

7 320peoplewereaskedabouttheirfavouriteflavouroficecream.

Hereisapictogramshowingtheresults.

vanilla

strawberry

chocolate

mintchocchip

a) Howmanypeoplechosemintchocchip?

b) Howmanymorepeoplechosevanillathanchocolate?

34of80

38of160

23of90

34of100