# Decimals/CBSE Class 6 Mathematics/Extra Questions for Practice

Answer the following:

- Write the following as decimals:

3 hundreds 2 tens 9 ones 4 tenths 7 hundredths

Solution:

3 x 100 + 2 x 10 + 9 x 1 + 4 x 1/10 + 7 x 1/100

= 300 + 20 + 9 + 0.4 + 0.07

= 329.47 - Write as decimals: Four tens and nine tenths

Solution: 4 x 10 + 9 x 1/10 = 40 + 0.9 = 40.9 - Which is greater 0.9 or 0.09?

Solution: 0.9 > 0.09 - Express the following as rupees:

a) 5 paise

b) 750 paise

Solution:

a) 5 paise = 5/100 rupees = 0.05 rupees

b) 750 paise = 750/100 rupees = 7.50 rupees - Express each of the following in terms of litres using decimals:

a) 525 ml

b) 3litre 750 ml

Solution:

a) We know that 1 litre = 1000 ml

525 ml = 525/1000 litre= 0.525 litre

b) 3 litre + 750/1000 litre = 3 + 0.750 = 3.750 litre - Add 4.3 and 2.15

Solution: 4.3 + 2.15 = 6.45 - Subtract 0.87 from 1.5

Solution: 1.5 – 0.87 = 063 - Compare 0.2 and 0.25

Solution: 0.25 > 0.2 - Find the sum of 0.15, 0.8 and 0.02

Solution: 0.15 + 0.8 + 0.02 = 0.97 - Write the fraction as decimals: 4/20

Solution: 4/20 x 5/5 = 20/100 = 0.20 - Arrange the following numbers in descending order:

9.08, 9.34, 8.98, 8.89, 9.1

Solution: 9.34, 9.1, 9.08, 8.98, 8.89 - Express 324 mm as cm using decimals.

Solution: We know that 1cm = 10mm

324mm = 324/10 = 32.4 cm - Write the number name of 104.87

Solution: One hundred four point eight seven - Arrange the following decimals in ascending order:

2.87, 8.72, 7.28, 8.27, 7.82

Solution: 2.87, 7.28, 7.82, 8.27, 8.72 - Write the whole number which is nearest to the following decimal numbers:

a) 0.987

b) 2.8

Solution:

a) 1

b) 3