percentage and fraction
decimals to %
% of a quantity
Mental Math.
100

3/10

30%

100

0.5

50%

100

what percentage is 20 meters out of 100 meters?

20%

100

78+32+15=

125

200

75%

0.75    75/100

200

0.75

75%

200

what percent is 40 out of 50 marks

80%

200

200 x 30 - 500=

5,500

300

1.2

120%

300

0.04

4%

300

what percent is 40cm out of 2 m

20%

300

850+150-350=

650

400

300%

3       300/100

400

0.008

0.8%

400

what is 25% of $350.00

$87.50

400

520 divided by 13

40

500

115%

1.15  115/100

500

0.0725

7.25%

500

6.8% of $185.00 

$12.58

500

850 divided by 50 = n

n + 3 = a

a x a =

400

M
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