# Class 6 Maths Chapter 2 Exercise 2.2 NCERT Solution – Whole Numbers

NCERT Class 6 Math Exercise 2.2 Solution of Chapter 2 Whole Numbers with explanation. Here we provide Class 6 Maths all Chapters in Hindi for cbse, HBSE, Mp Board, UP Board and some other boards.

Also Read : – Class 6 Maths NCERT Solution

NCERT Class 6 Maths Chapter 2 Whole Numbers Exercise 2.2 Solution in english Medium.

## Class 6 Maths Chapter 2 Exercise 2.2 Solution

Q.1. Find the sum by suitable rearrangement:
A. 837 + 208 + 363
Ans. = ( 837 + 363 ) + 208
= 1200 + 208
= 1408

B. 1962 + 453 + 1538 + 647
Ans. = ( 1962 + 1538 ) + ( 453 + 647 )
= 3500 + 1100
= 4,600

Q.2. Find the product by suitable rearrangement:
A. 2 x 1768 x 50
Ans.= ( 2 x 50 ) x 1768
= 100 x 1768
= 1,76,800

B. 4 x 166 x 25
Ans. = ( 4 x 25 ) x 166
= 100 x 166
= 16,600

C. 8 x 291 x 125
Ans. = ( 8 x 125 ) x 291
= 1000 x 291
= 2,91,000

D. 625 x 279 x 16
Ans. = ( 625 × 16 ) × 279
= 10000 × 279
= 27,90,000

E. 285 x 5 x 60
Ans. = 285 x ( 5 x 60 )
= 285 x 300
= 85,500

F. 125 x 40 x 8 x 25
Ans. = ( 125 x 40 ) x ( 8 x 25 )
= 5000 x 200
= 10,00,000

Q.3. Find the value of the following :
A. 297 x 17 + 297 x 3
Ans. = 297 x ( 17 + 3 )
= 297 x 20
= 5,940

B. 54279 x 92 + 8 x 54279
Ans. = 54279 x ( 92 + 8 )
= 54279 x 100
= 54,27,900

C. 81265 x 169 – 81265 x 69
Ans. = 81265 ( 169 – 69 )
= 81265 x 100
= 81,26,500

D. 3845 x 5 x 782 + 769 x 25 x 218
Ans. = (3845 x 5 ) x 782 + ( 769 x 25 ) x 218
= 19225 x 782 + 19225 x 218
= 19225 x ( 782 +218 )
= 19225 x 1000
= 1,92,25,000

Q.4. Find the product using suitable properties:
A. 738 x 103
= 738 x ( 100 + 3 )
= 738 x 100 + 738 x 3
= 73800 + 2214
= 76,014

B. 854 x 102
= 854 x ( 100 + 2 )
= 854 x 100 + 854 x 2
= 85400 + 1708
= 87,108

C. 258 x 1008
= 258 x ( 1000 + 8 )
= 258000 + 2064
= 2,60,064

D. 1005 x 168
= ( 1000 + 5 ) x 168
= 1000 x 168 + 168 x 5
= 168000 + 840
= 1,68,840

Q.5 . A taxi driver filled his car petrol tank with 40 litres of petrol on Monday. The next day, he filled the tank with 50 litres of petrol. If the petrol costs Rs.44 litre, how much did he spend in all on petrol?

Ans. Total Money spend on petrol
= 40 x 44 + 50 x 44
= 44 x ( 40 + 50 )
= 44 x 90
= 3,960

Q. 6. A vendor supplies 32 litres of milk to a hotel in the morning and 68 litres of milk in the evening. If the milk costs Rs. 45 per litre, how much money is due to the vendor per day?

Ans. Total money due to vendor in one day
= 32 x 45 + 68 x 45
= 45 x ( 32 + 68 )
= 45 x 100
= 4,500

Q. 7. Match the following :

 A. 425 x 136 = 425 x ( 6 + 30 + 100 ) B. 2 x 49 x 50 = 2 x 50 x 49 C. 80 + 2005 + 20 = 80 + 20 + 2005 1. Commutativity under multiplication. 2. Commutativity under addition 3. Distributivity of multiplication over addition

Ans.

 A. 425 x 136 = 425 x ( 6 + 30 + 100 ) B. 2 x 49 x 50 = 2 x 50 x 49 C. 80 + 2005 + 20 = 80 + 20 + 2005 3. Distributivity of multiplication over addition 1. Commutativity under multiplication. 2. Commutativity under addition
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