Percentages and The Calculator

Percentages and The Calculator

Student Book - Series H-1

3.4% of 2560 = ____

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Percentages and the calculator Student Book - Series H

Contents

Topics

Topic 1 - Changing percentages to fractions Topic 2 - Changing fractions to percentages Topic 3 - Changing percentages to decimals Topic 4 - Changing decimals to percentages Topic 5 - Finding the percentage of a quantity Topic 6 - Expressing quantities as percentages Topic 7 - Problem solving and percentages

Practice Tests

Topic 1 - Topic test A Topic 2 - Topic test B

Author of The Topics and Topic Tests: AS Kalra

Date completed

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Percentages and the calculator Mathletics Instant Workbooks ? Series H Copyright ? 3P Learning

CHAPTER 7

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QUESTION 1

a 30 % = d 70 % = g 90 % = j 65 % =

Express the following percentages as fractions in simplest form.

b 20 % =

c

e 60 % =

f

h 10 % =

i

k 23 % =

l

50 % = 80 % = 5% = 95 % =

ANSWERS page 1523

QUESTION 2 Use your calculater to convert the following percentages to fractions in simplest form.

a 3.5 % =

b 15.6 % =

c 5.5 % =

d 8.6 % =

e 62.8 % =

f 28.5 % =

g 4.3 % =

h 93.15 % =

i 63.6 % =

j 9.63 % =

k 63.7 % =

l 0.5 % =

QUESTION 3 Use your calculator to change the following percentages to fractions in simplest form.

a 8.53 % =

b 25.63 % =

c 62.4 % =

d 6.25 % =

e 63.9 % =

f 75.6 % =

g 9.2 % =

h 85.7 % =

i 83.4 % =

j 12.8 % =

k 92.85 % =

l 98.5 % =

QUESTION 4

a 63 % = d 56 % = g 45 % = j 76 % =

Convert the following to fractions in simplest form. b 96 % = e 38 % = h 48 % = k 92 % =

c 64 % = f 58 % = i 42 % = l 32 % =

QUESTION 5 Change the following percentages to fractions in simplest form..

a

1%= 2

b

1%= 5

c

d 61%= 2

e 25 1 % =

f

4

g

12 1 % = 2

h

10 1 % = 2

i

1%= 4 20 1 % =

4 45 1 % =

2

EXCEL ESSENTIAL SKILLS: YEAR 7 MATHEMATICS REVISION AND EXAM WORKBOOK 1

73

Percentages and the calculator

1

Mathletics Instant Workbooks ? Series H Copyright ? 3P Learning

Perceennttaaggeessaannddtthheeccaalclcuulalatotor r

TUoNpiIcT22: :CChahnagningginfgrafcrtaiocntsiotonspetrocepnetracgeesntages

QUESTION 1

a

50 = 100

d

30 = 100

g 85 = 100

j 25 = 100

Change the following fractions to percentages.

b

48 = 100

e

36 = 100

h 45 = 100

k 39 = 100

c

60 = 100

f

75 = 100

i 90 = 100

l 84 = 100

QUESTION 2

a 1= 2

d 18 = 10

g

9= 10

j

2= 5

Use your calculator to change the following fractions to percentages.

b 8= 20

c 9= 40

e 6= 50

f 7= 60

h

8= 25

i

9= 80

k

3= 75

l

3= 50

QUESTION 3 Change the following fractions to percentages.

a

1= 4

b

15 = 80

d

9= 60

e

3= 8

g 7= 60

h 4= 5

c

11 = 20

f

3= 40

i 18 = 70

ANSWERS page 1532

QUESTION 4

a

5= 8

d

7= 12

g 3= 5

Express the following as percentages.

b

1= 5

e

7= 8

h 1= 2

c

5= 12

f

2= 3

i 6= 7

74

EXCEL ESSENTIAL SKILLS: YEAR 7 MATHEMATICS REVISION AND EXAM WORKBOOK 1

Percentages and the calculator

2

Mathletics Instant Workbooks ? Series H Copyright ? 3P Learning

Percennttaaggeess aannddtthheeccaalclcuulalatotorr

TUoNpiIcT33: :CChahnagnignginpgeprceerncteagnetsagtoesdetcoimdaelscimals

QUESTION 1

a 20 % = d 60 % = g 25 % = j 70 % =

Express the following percentages as decimals. b 30 % = e 10 % = h 35 % = k 80 % =

c 40 % = f 50 % = i 15 % = l 90 % =

QUESTION 2

a 15 % = d 18 % = g 37 % = j 72 % =

Change the following percentages to decimals. b 29 % = e 83 % = h 26 % = k 81 % =

c 92 % = f 38 % = i 67 % = l 48 % =

QUESTION 3 Convert the following percentages to decimals.

a 3% =

b 2% =

d 5% =

e 8% =

g 1.3 % =

h 5.2 % =

j 2.65 % =

k 10.8 % =

c 7% = f 9% = i 8.9 % = l 9.4 % =

QUESTION 4 Change the following percentages to decimals.

a 48.3 % =

b 63.7 % =

d 92.7 % =

e 53.6 % =

g 61.5 % =

h 69.9 % =

j 32.8 % =

k 42.8 % =

c 10.35 % = f 25.63 % = i 32.85 % = l 49.6 % =

QUESTION 5 Express the following percentages as decimals.

a 25 1 % = 4

b 5%= 4

d

12 1 % = 2

e

20 2 % = 5

g

33 1 % = 3

h

4%= 5

j 21%= 2

k 66 2 % = 3

m

33%= 4

n

3% = 8

p

91%= 4

q

5%= 9

c 41%= 2

f

31 % = 4

i

55%= 6

l 81%= 4

o

93%= 4

r

16 1 % = 2

EXCEL ESSENTIAL SKILLS: YEAR 7 MATHEMATICS REVISION AND EXAM WORKBOOK 1

Percentages and the calculator Mathletics Instant Workbooks ? Series H Copyright ? 3P Learning

ANSWERS page 1532

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