Page 90 - Math Skill - 5

88 Maths

Step 2: If the whole number parts are equal, then compare the digits at tenth place. The

decimal having greater tenths digit is greater. If tenths digits are equal, compared
the hundredths digits and so on.

Let’s Attempt

Example 1: Compare the following decimals.

(a) 264.35 and 264.64 (b) 13.5 and 16.3

Solution: (a) 2 6 4 . 3 5 and 2 6 4 . 6 4

same The whole number part is same,

3 < 6 so we compare the tenth digits.
⇒ 264.35 < 264.64

(b) 1 3 . 5 and 1 6 . 3

13 < 16 Whole part 13 is smaller that 16.

⇒ 13.5 is smaller than 16.3

Example 2: Arrange 2.36, 16.532, 207.6, 49.85 and 0.85 in ascending order.

Solution: We must convert each decimal into like decimal to compare. So, we get 2.360,
16.532, 207.600, 49.850 and 0.850 comparing the whole number parts.

0 < 2 < 16 < 49 < 207

⇒ 0.85 < 2.36 < 16.532 < 49.85 < 207.6

So, ascending order is 0.85, 2.36, 16.532, 49.85, 207.6.

Exercise 6.4

1. Compare the following decimals.

(a) 15.36 and 26.36 (b) 189.44 and 189.04
(c) 899.9 and 899.09 (d) 673.5 and 67.35

2. Convert the following groups into like decimals.
(a) 6.5, 13.835, 175.49 (b) 12.25, 12.3, 437.587
(c) 11.11, 11.111, 11.1011, 11.01 (d) 259.3, 16.3002, 9.52

3. Arrange in descending order.
(a) 0.32, 0.35, 0.04, 0.53, 0.40 (b) 0.8, 1.82, 18.32, 28.01, 1.28

(c) 3.004, 3.04, 3.4, 3.404, 0.304