Class 6 Maths | Whole Numbers | Practice Problems

CLASS 6 Mathematics | Whole Numbers | Practice Problems

Fill in the blanks:

1. ———— is the smallest whole number.

2. The successor of 599 is ————-

3. ———- is the smallest natural number.

4. The predecessor of 95 is ———–

Answer the following:

5. Write the successor and predecessor of

a) 2000
b) 999

6. Find the sum by suitable rearrangement:

a) 237 + 102 + 343 + 548

7. Find the product by suitable rearrangement:

a) 2 x 5432 x 50
b) 125 x 765 x 8

8. Find the value of the following:

a) 654 x 47 + 53 x 654
b) 7896 x 146 – 7896 x 46

9. Find the product using suitable properties:

a) 654 x 102
b) 124 x 1005

10. Manu spent 50 rupees for lunch and 24 rupees for breakfast everyday. How much money do Manu spend in 5 days on these things?

Answers:

1. Zero

2. 600

3. One

4.94

5. a) Successor of 2000 is 2001
Predecessor of 2000 is 1999.
b) Successor of 999 is 1000
Predecessor of 999 is 998.

6. (237 + 343) + (102 + 548) = 580 + 650 = 1230

7. a) 5432 x (2 x 50) = 5432 x 100 = 543200 (by associative property)
b) 765 x (125 x8) = 765 x 1000 = 765000

8. a) 654 x(47 + 53) (by distributivity of multiplication over addition)
= 654 x 100 = 65400
b) 7896 x (146 -46) (by distributivity of multiplication over subtraction)
= 7896 x 100 = 789600

9. a) 654 x (100 + 2) = 654 x 100 + 654 x 2 = 65400 + 1308 = 66708
b) 124 x (1000+ 5) = 124 x 1000 + 124 x 5 = 124000 + 620 = 124620

10. Money spent for lunch = Rs 50

Money spent for breakfast = Rs 24
Money spent in one day = 50 + 24 = Rs 74
Money spent in 5 days = 74 x 5 = Rs 370