Free Printable Playing with numbers

1.

Which of the following number is divisible by 2?

a)

6483

b)

2967

c)

7890

d)

1235

2.

A number which is divisible by 9 is also divisible by_____

a)

3

b)

6

c)

11

d)

None of these

3.

The usual form of the number 5 x 100 + 6 x 1 is _____

a)

506

b)

5006

c)

56

d)

11

4.

Which of the following number is divisible by 3 but not by 9?

a)

810

b)

270

c)

330

d)

450

5.

Say 'TRUE' or 'FALSE'
The number 3165 is divisible by 9

a)

TRUE

b)

FALSE

6.

The number 2³ x 3² is divisible by ___

a)

2 only

b)

3 only

c)

9 only

d)

2, 3 and 9

7.

If 486*7 is divisible by 9, then the least value of * is ____

a)

0

b)

1

c)

2

d)

3

8.

If a number is divisible by 5, then which of the following can be its one's digit?

a)

2

b)

3

c)

4

d)

5

9.

The sum of the digits of a two-digit number is 9. The number is 9 times the unit digit. Find the number

a)

36

b)

54

c)

45

d)

27

10.

If the division of N ÷ 5 leaves a remainder 4. What might be the one's digit?

a)

4

b)

9

c)

4 or 9

d)

3

11.

generalised form of a two digit number 5x is ________

a)

5 + x

b)

50 + (x × 10)

c)

5 × 10 + x

d)

x × 10 + 5

12.

The generalised form of abcd is _________

a)

a + b + c + d

b)

(a + b + c+ d ) × ( 1000 + 100)

c)

a + b × 100 + c × 10 + d

d)

a × 1000 + b × 100 + c × 10 + d

13.

What is the usual form of p × 10 + q × 1000?

a)

q0p

b)

q0p0

c)

pq

d)

p0q

14.

What is the smallest value of x in '230x' to make it divisible by 4?

a)

8

b)

4

c)

2

d)

0

15.

What is the least value of y in '23y02' to make it divisible by 3?

a)

1

b)

2

c)

3

d)

6

16.

What is the smallest value of m in '530m' to make it divisible by 6?

a)

2

b)

0

c)

6

d)

4

17.

If x210y is divisible by 9 then what is the sum of x and y?

a)

3

b)

6

c)

9

d)

2

18.

If a02b1c is a 6-digit number that is divisible by 3 then the least possible value of a + b + c is _________.

a)

0

b)

3

c)

6

d)

9

19.

If 4x01y is divisible by 5, 10 and 9 then the value of x is ______.

a)

0

b)

2

c)

5

d)

4

20.

Find A:- (41A + 1A4) = 591

a)

7

b)

5

c)

4

d)

8

21.

What is the value of Q in (1Q × Q) = 7Q?

a)

6

b)

5

c)

3

d)

4

22.

(3Q + 25) = P2, Find P + Q.

a)

9

b)

11

c)

21

d)

13

23.

34A + 3AB = C29, then (A + B - C) = ________.

a)

1

b)

0

c)

2

d)

3

24.

Find x in '19x' so that 19x is the greatest 3-digit number and a common multiple of 3 and 5.

a)

0

b)

2

c)

5

d)

3

25.

Fill in the smallest digit in the blank so that 156__9 is divisible by 3.

a)

0

b)

1

c)

2

d)

3

26.

Fill in the smallest digit in the blank so that 470__ is divisible by 4.

a)

1

b)

2

c)

3

d)

0

27.

The common factors of 60 and 75 are ____________.

a)

1,3

b)

1,3,5

c)

1,3,5,10

d)

1,3,5,15

28.

The common factors of 4, 12 and 16 are _____________.

a)

1 and 4

b)

2 and 4

c)

4 and 3

d)

1 , 2 and 4

29.

Let 'ab' be a three digit number. Then ab - ba is not divisible by

a)

9

b)

11

c)

33

30.

If "5A + B3 = 65" then the value of A and B is

a)

A = 2, B = 3

b)

A = 3, B = 2

c)

A = 2, B = 1

31.

If "A3 + 8B = 150", then the value of A + B is

a)

13

b)

12

c)

17

32.

If "5A x A = 399", then the value of A is

a)

3

b)

6

c)

7

33.

If "AB x B = 96", then the value of A and B is

a)

A = 2, B = 4

b)

A = 2, B = 2

c)

A = 3, B= 2

34.

"1A35" is divisible by 3 if A = _________

a)

4

b)

3

c)

2

35.

The usual form of 1000a + 10b + c is

a)

abc

b)

abc0

c)

a0bc

Playing with numbers

Total questions: 35

Worksheet time: 35mins

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