Page 277 - Math Smart - 7

To express a decimal as a percentage, multiply the decimal by 100%.

Example 6
To express .v% as a
Express the decimals as percentages, decimal, divide .v by
100.
a) 0.85 b) 0.3 c) 0.02
To express a decimal as
Solution a percentage, multiply
a) 0.85 = 0.85 x 100% by 100%.
= 85%

On a calculator enter the decimal and multiply it by 100. Enter:
The display gives the answer 85. CD ® © ® QD ® ® ®

b) 0.3 = 0.3x100% c) 0.02 = 0.02 X 100%
= 30% = 2%

Check My

Understanding

Express these decimals as percentages,
a) 0.25 b) 0.45 c) 0.5 d) 0.7
e) 0.07 f) 0.09 g) 0.4 h) 0.375
Express these percentages as decimal.
a) 30% b) 42% c) 80% d) 3%
e) 8% f) 12% g) 67% h) 17.5%

Complete the table. The first one has been done for you.

Fraction Decimal Percentage
1
0.05 5%
20
1
10
20%
0.25
35%
2
5
0.5
3
4