## ML Aggarwal Class 6 Solutions for ICSE Maths Chapter 7 Decimals Ex 7.2

Question 1.

Write the following decimal fractions as decimal numbers:

Solution:

Question 2.

Write the following decimal numbers as decimal fractions:

(i) 54.01

(ii) 318.105

(iii) 0.37

(iv) 0.047

(v) 0.03

(vi) 34.5

Solution:

Question 3.

Write the following decimal numbers as fractions in lowest terms:

(i) 0.8

(ii) 0.04

(iii) 0.125

(iv) 0.225

(vi) 0.066

(vii) 0.092

Solution:

Question 4.

Convert the following decimal numbers into mixed fractions:

(i) 31.6

(ii) 3.25

(iii) 7.025

(iv) 95.95

Solution:

Question 5.

Convert the following fractions into decimal numbers:

Solution:

Question 6.

Convert the following unlike decimal numbers to like decimal numbers :

(i) 17.5, 3.912

(ii) 5.04, 13.1902

(iii) 2.451, 3.7, 28.34

(iv) 3.1,2.678,27.0103

Solution:

(i) 17.500, 3.912

(ii) 5.0400, 13.1902

(iii) 2.451, 3.700, 28.340

(iv) 3.1000, 2.6780, 27.0103

Question 7.

In each of the following pairs of decimal numbers, state which number is greater ?

(i) 0.3, 0.4

(ii) 1, 0.99

(iii) 1.09, 1.093

(iv) 0.5, 0.05

Solution:

(i) 0.3, 0.4

Multiply both with 10, we get

3, 4

∴0.4 is greater than 0.3

(ii) 1, 0.99

Multiply both with 100, we get

100, 99

∴ 1 is greater than 0.99

(iii) 1.09, 1.093

Multiply both with 1000, we get

1090, 1093

∴ 1.093 is greater than 1.09

(iv) 0.5, 0.05

Multiply both with 100, we get

50, 5

∴ 0.5 is greater than 0.05

Question 8.

In each of the following pairs of decimal numbers, state which number is smaller:

(i) 45.78, 345.8

(ii) 37.701, 37.71

(iii) 5.907, 5.903

Solution:

(i) 45.78

(ii) 37.701

(iii) 5.903

Question 9.

Arrange the following decimal numbers in ascending order:

(i) 27.35, 27.305, 2.7, 2.543

(ii) 4.53, 4.07, 29.1, 0.9, 0.709

Solution:

(i) 2.543, 2.7, 27.305, 27.35

(ii) 0.709, 0.9, 4.07, 4.53, 29.1

Question 10.

Arrange the following decimal numbers in descending order:

(i) 3.303, 33.03, 3.3, 30.33

(ii) 72.5, 2.75, 27.505, 0.275, 2.507

Solution:

(i) 33.03, 30.33, 3.303, 3.3

(ii) 72.5, 27.505′, 2.75, 2.507, 0.275