Percentage of an amount (1)

1 Matchtheequivalentfractionstothepercentages.

12

25%

1100

1%

110

50%

14

10%

2 Matcheachbarmodeltothestatementitrepresents.40

?

10%of40

40

?

25%of40

40

?

50%of40

Compareanswerswithapartner.

3 Usethebarmodelstohelpyoucompletethecalculations.

a)

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

?

624

50%of624=

0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

?

624

25%of624=

Whatdoyounoticeaboutyouranswers?

b) Usebarmodelstocompletethecalculations.

50%of3,420=

©WhiteRoseMaths2019

25%of3,420=

10%of3,420=

4 Completethecalculations.

a) 50%of3,000= c) 10%of3,000=

50%of1,500= 10%of1,500=

50%of500= 10%of500=

b) 25%of3,000= d) 1%of3,000=

25%of1,500= 1%of1,500=

25%of500= 1%of500=

Whatdoyounoticeaboutyouranswers?

©WhiteRoseMaths2019

5 Workersinatoyfactoryaimtopack2,560boxeseachday.

At10:00amtheyhavecompleted25%oftheirtarget.

a) Howmanyboxeshavetheypacked?

Bymiddaytheyhavepacked50%oftheirtarget.

At2:00pmtheyhavepackedanother10%oftheirtarget.

b) Howmanymoreboxesdotheyneedtopacktomeetthedaily

target?

Theyneedtopack moreboxes.

6 Followthestepstofindawaythroughthemaze.

Find20%START

2,000Find25% ×10 –600

Find

10%

Find

50%

Find

1%+700

Find

50%×5

Find

10%

Add

1,000Double

Find

1%–100

–500Find

25%Double ×10

Find

1%

Double +800Find

1%

Find

50%

FINISH

55