Extra Questions for Class 6 Maths revision becomes an easy task during the annual exam. Students who find it challenging to understand the basics of the chapter must practice all the essential questions to understand better. These crucial questions and answers on Knowing Our Numbers Class 6 Maths can aid the students’ preparation through the concepts of this chapter 1. https://meritbatch.com/knowing-our-numbers-class-6-extra-questions/

## NCERT Class 6 Maths Chapter 8 Extra Questions and Answers

**Extra Questions for Class 6 Maths Chapter 8 Decimals**

### Decimals Class 6 Extra Questions Very Short Answer Type

**Decimal Questions For Class 6 Question 1.**

Write the following in decimals.

5 hundreds 3 tens 8 ones 4 tenths

Solution:

5 Hundreds + 3 Tens + 8 Ones + 4 Tenths

= 5 x 100 + 3 x 10 + 8 x 1 + 4 x \(\frac { 1 }{ 10 }\)

= 500 + 30 + 8 + \(\frac { 4 }{ 10 }\)

= 538 + \(\frac { 4 }{ 10 }\) = 538.4

**Decimals Class 6 Extra Questions Question 2.**

Write 14.3 in place value table.

Solution:

Hundreds |
Tens |
Ones |
Tenths |

0 | 1 | 4 | 3 |

**Class 6 Decimals Extra Questions Question 3.**

Write the following in decimals.

Solution:

**Questions On Decimals For Class 6 Question 4.**

Write the following as decimals.

(a) Three tens and eight-tenths

(b) Fifteen point seven

Solution:

(a) Three tens and eight-tenths = 3 x 10 + 8 x = 30 + 0.8 = 30.8

(b) Fifteen point seven = 15.7

**Decimals Class 6 Worksheet Question 5.**

Write the following as decimals.

Solution:

(a) 200 + 50 + 6 + \(\frac { 2 }{ 10 }\) = 256 + 0.2 = 256.2

(b) 150 + 30 + \(\frac { 8 }{ 10 }\) = 180 + 0.8 = 180.8

**Class 6 Maths Decimals Extra Questions Question 6.**

Write in decimals:

Solution:

**Decimals Questions For Class 6 Question 7.**

Write as fractions in lowest form.

(a) 0.05

(b) 20.25

Solution:

Question 8.

Write the following in decimals.

Three hundred six and seven hundredths.

Solution:

Three hundred six and seven hundredths

Question 9.

Which is greater 0.4 or 0.5?

Solution:

0.4 = 4 and 0.5 = ±

Here \(\frac { 5 }{ 10 }\) > \(\frac { 4 }{ 10 }\)

∴ o.5 > 0.4

Question 10.

Express the following as rupees using decimals:

(a) 7 paise

(b) 625 paise

Solution:

### Decimals Class 6 Extra Questions Short Answer Type

Question 11.

Represent 1.3,3.8 and 4.1 on the number line.

Solution:

A represents 1.3

B represents 3.8

and C represents 4.1

Question 12.

Read the numbers from the place value table and write them in decimals;

Solution:

(a) 4 Thousands + 0 Hundreds + 2 Tens + 3 Ones + 6 Tenths + 0 Hundredths

= 4 x 1000 + 0 x 100 + 2 x 10 + 3 x 1 + 6 x \(\frac { 1 }{ 10 }\) + 0 x \(\frac { 1 }{ 100 }\)

10 100

= 4000 + 0 + 20 + 3 + 0.6 + 0 = 4023.6

(b) 2 Thousands + 8 Hundreds + 8 Tens + 0 Ones + 3 Tenths + 4 Hundredths

= 2 x 1000 + 8 x 100 + 8 x 10 + 0 x 1 + 3 x \(\frac { 1 }{ 10 }\) + 4 x \(\frac { 1 }{ 100 }\)

= 2000 + 800 + 80 + 0.3 + 0,04

= 2880 + 0.34 = 2880.34

(c) 6 Thousands + 4 Hundreds + 2 Tens + 8 Ones + 4 Tenths + 3 Hundredths

= 6 x 1000 + 4 x 100 + 2 x 10 + 8 x 1 + \(\frac { 4 }{ 10 }\) + \(\frac { 3 }{ 100 }\)

= 6000 + 400 + 20 + 8 + 0.4 + 0.03

= 6428 + 0.43 = 6428.43

Question 13.

Write each of the following as decimals:

Solution:

Question 14.

Convert the following unlike decimals into like decimals:

Solution:

LCM of 10, 50, 5 and 20 = 100

Question 15.

Write the following decimals in their expanded form:

(a) 27.65

(b) 102.05

(c) 36.36

(d) 0.507

Solution:

(a) 27.65

(b) 102.05

(c) 36.36

(d) 0.507

Question 16.

Write each of the decimals as a mixed fraction.

(a) 95.8

(b) 15.78

(c) 0.015

(d) 19.91

Solution:

Question 17.

Express each of the following in terms of litres (L) using decimals:

(a) 625 mL

(b) 760 mL

(c) 11 L 125 mL

(d) 7 L 350 mL

Solution:

(a) We know that 1000 mL = 1 L

∴ 625mL = \(\frac { 625 }{ 1000 }\)L = 0.625 L

Thus, 625 mL = 0.625 L

(b) We know that 1000 mL = 1 L

∴ 760 mL = \(\frac { 760 }{ 1000 }\) L

= 0.760 L = 0.76 L

Thus, 760 mL = 0.76 L

(c) We know that 1000 mL = 1 L

∴ 11L 125L = 11 L + \(\frac { 125 }{ 1000 }\) L

= (11 +0.125) L = 11.125 L

Thus, 11 L 125 mL = 11.125 L

(d) We know that 1000 mL = 1 L

∴ 7 L 350 mL = 7 L + \(\frac { 350 }{ 1000 }\) L

= (7 + 0.350) L = 7.350 L = 7.35 L

Thus, 7L 350 mL = 7.35 L

Question 18.

Write 3.03, 2.75 and 2.5 in ascending order.

Solution:

The given decimals are unlike.

∴ Their corresponding like decimals are 3.03, 2.75 and 2.50.

Now neglecting the decimals, we have 303, 275 and 250.

Since, 303 > 275 > 250,

we have 3.03 > 2.75 > 2.50

∴ Ascending order is 2.50 < 2.75 < 3.03

Question 19.

Find the value of the following:

(а) 15 – 9.363

(B) 5.28 – 1.4 + 3.116

Solution:

Hence, 5.28 – 1.4 + 3.116 = 6.996

### Decimals Class 6 Extra Questions Higher Order Thinking Skills (HOTS)

Question 20.

Mr. Ranjan purchased 15.500 kg rice, 25.750 kg flour and 3.250 kg sugar. Find the total weight of his purchases. Is it 50 kg or less? If less, how much less?

Solution:

Weight of rice = 15.500 kg

Weight of flour = 25.750 kg

Weight of sugar = 3.250 kg

Total weight of this purchases = 15.500 kg + 25.750 kg + 3.250 kg

= 44.500 kg

We see that the total weight of his purchases is less than 50 kg.

Thus, the total weight 44.500 kg is 5.500 kg less than 50 kg.

Question 21.

Ten years old Rahul can carry a maximum weight of 15 kg. If he bought 4 kg 900 g of apples, 2 kg 600 g of grapes and 5 kg 300 g of mangoes. Can he carry the total weight that he bought. If yes, then how much more weight he can carry with him?

Solution:

Weight of apples = 4 kg 900 g

Weight of grapes = 2 kg 600 g

Weight of mangoes = 5 kg 300 g

∴ Total weight of his purchases = 4 kg 900 g + 2 kg 600 g + 5 kg 300 g

= 4.900 kg + 2.600 kg + 5.300 kg

= 12.800 kg

But Rahul can carry a maximum weight of 15 kg.

Thus more weight that he can carry with him = 15 kg – 12.800 kg

= 2.200 kg

**Class 6 Maths Extra Questions**

- Knowing Our Numbers Class 6 Extra Questions
- Whole Numbers Class 6 Extra Questions
- Playing With Numbers Class 6 Extra Questions
- Basic Geometrical Ideas Class 6 Extra Questions
- Understanding Elementary Shape Class 6 Extra Questions
- Integers Class 6 Extra Questions
- Fractions Class 6 Extra Questions
- Decimals Class 6 Extra Questions
- Data Handling Class 6 Extra Questions
- Mensuration Class 6 Extra Questions
- Algebra Class 6 Extra Questions
- Ratio and Proportion Class 6 Extra Questions
- Symmetry Class 6 Extra Questions
- Practical Geometry Class 6 Extra Questions