For Real number decimal is represented by using base 10. Each numeral from 0 to 9 is called as a decimal digit.
Example: 0 . 32
Place values:
How to change decimals to percents?
- Move the decimal point two places to the right.
- Insert a percent (%) sign.
Example1: Change to percents
(a)0.008
(b)1.39
(c)5/2
(b)1.39
(c)5/2
Answer: (a) 0.8% (b) 139% (c) 2.5 = 250%
How to change percents to decimals?
- How to change percents to decimals?
- Remove the % sign.
Example2: Change percents to decimals.
(a) 267%
(b) 42%
(b) 42%
Answer: (a) 2.67 (b) 0.42
Example3: Divide the following.
(a) 0.18 ÷ 0.06
(b)0.196 ÷ 0.14
(b)0.196 ÷ 0.14
Answer: (a) 3 (b) 1.4
Example4: Multiply the following
(a) 72. 2 x 0.3
(b) 0.42 x 0.1
(b) 0.42 x 0.1
Answer: (a) 21.66 (b) 0.042
