**CBSE Class 7 Maths – MCQ and Online Tests – Unit 1 – Integers**

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**CBSE Class 7 Maths – MCQ and Online Tests – Unit 1 – Integers**

Question 1.

(-30) × 20 is equal to

(a) 600

(b) -600

(c) 50

(d) 10.

## Answer

Answer: (b) – 600

Question 2.

10 × (-20) is equal to

(a) 200

(b) -200

(c) 30

(s) 20

## Answer

Answer: (b) -200

Question 3.

Which of the following statements is wrong?

(?) When a positive integer and a negative integer are added, we always get a negative integer

(b) Additive inverse of 8 is (-8)

(c) Additive inverse of (-8) is 8

(d) For subtraction, we add the additive inverse of the integer that is being subtracted, to the other integer.

## Answer

Answer: (?) When a positive integer and a negative integer are added, we always get a negative integer

Question 4.

Which of the following is true?

(?) (- 8) + (- 4) > (- 8) – (- 4)

(b) (- 8) + (- 4) < (- 8) – (- 4)

(c) (-8) + (- 4) = (- 8) – (- 4)

(d) none of these.

## Answer

Answer: (b) (- 8) + (- 4) < (- 8) – (- 4)

Hint:

(-8) + (-4) = -12

(-8) – (-4) = -4

Question 5.

On a number line, when we subtract a positive integer, we

(a) move to the right

(b) move to the left

(c) do not move at all

(d) none of these.

## Answer

Answer: (b) move to the left

Question 6.

On a number line, when we subtract a negative integer, we

(a) move to the right

(b) move to the left

(c) do not move at all

(d) none of these.

## Answer

Answer: (a) move to the right

Question 7.

When two positive integers are added, we get

(a) a positive integer

(b) a negative integer

(c) sometimes a positive integer, sometimes a negative integer

(d) none of these.

## Answer

Answer: (a) a positive integer

Question 8.

When two negative integers are added, we get

(a) a positive integer

(b) a negative integer

(c) sometimes a positive integer, sometimes a negative integer

(d) none of these.

## Answer

Answer: (b) a negative integer

Question 9.

On a number line, when we add a positive integer, we

(a) move to the right

(b) move to the left

(c) do not move at all

(d) none of these.

## Answer

Answer: (a) move to the right

Question 10.

On a number line, when we add a negative integer, we

(a) move to the right

(b) move to the left

(c) do not move at all

(d) none of these.

## Answer

Answer: (b) move to the left

Question 11.

(-1) × (-1) × (-1) × …….. 5 times is equal to

(a) 1

(b) -1

(c) 1 or -1

(d) none of these.

## Answer

Answer: (b) -1

Question 12.

(-1) × (-1) × (-1) × …… 2 m times, where m is a natural number, is equal to

(a) 1

(b) -1

(c) 1 or -1

(d) none of these.

## Answer

Answer: (a) 1

Question 13.

(-1) × (-1) × (-1) × (2m + 1) times,

where m is a natural number, is equal to

(a) 1

(b) -1

(c) 1 or -1

(d) none of these.

## Answer

Answer: (b) -1

Question 14.

(-20) × (-5) is equal to

(a) 100

(b) – 100

(c) 20

(d) 5.

## Answer

Answer: (a) 100

Question 15.

3 × 0 is equal to

(a) 0

(b) 3

(c) 1

(d) -3

## Answer

Answer: (a) 0

Question 16.

0 × (-5) is equal to

(a) 0

(b) 5

(c) -5

(d) 1.

## Answer

Answer: (a) 0

Question 17.

10 ÷ (-5) is equal to

(a) 1

(b) 2

(c) -2

(d) 5.

## Answer

Answer: (c) -2

Question 18.

(-6) ÷ (-3) is equal to

(a) 1

(b) 2

(c) 3

(d) 6.

## Answer

Answer: (b) 2

Question 19.

(-2) × 1 is equal to

(a) 2

(b) -2

(c) 1

(d) – 1.

## Answer

Answer: (b) -2

Question 20.

1 × 6 is equal to

(a) 6

(b) -6

(c) 1

(d) -1.

## Answer

Answer: (a) 6

Question 21.

4 × (-1) is equal to

(a) 4

(b) -4

(c) 1

(d) – 1.

## Answer

Answer: (b) -4

Question 22.

(-10) × 0 × (-15) is equal to

(a) 0

(b) 10

(c) 15

(d) 150.

## Answer

Answer: (a) 0

Question 23.

The integer whose product with (-1) is 0, is

(a) 1

(b) -1

(c) 0

(d) none of these

## Answer

Answer: (c) 0

Question 24.

The integer whose product with (-1) is 1, is

(a) -1

(b) 1

(c) 0

(d) none of these.

## Answer

Answer: (a) -1

Question 25.

The multiplicative identity for integers is

(a) 1

(b) -1

(c) 0

(d) none of these.

## Answer

Answer: (a) 1

Question 26.

a × (b + c) = a × b + a × c is called

(a) commutative property

(b) associative property

(c) distributive property

(d) closure property.

## Answer

Answer: (c) distributive property

Question 27.

(-5) ÷ 1 is equal to

(a) 5

(b) -5

(c) 1

(d) -1.

## Answer

Answer: (b) -5

Question 28.

(-9) ÷ (-1) is equal to

(a) 1

(b) 9

(c) -1

(d) -9.

## Answer

Answer: (b) 9

Question 29.

If 16 ÷ x = 16, then x is equal to

(a) 1

(b) 2

(c) 4

(d) 16.

## Answer

Answer: (a) 1

Question 30.

If (-50) ÷ x = 1, then x is equal to

(a) 1

(b) 50

(c) -50

(d) 10.

## Answer

Answer: (c) -50

Question 31.

If x ÷ 1 = 8, then x is equal to

(a) 8

(b) 1

(c) -8

(d) -1.

## Answer

Answer: (a) 8

Question 32.

The additive identity for integers is

(a) 1

(b) -1

(c) 0

(d) none of these.

## Answer

Answer: (c) 0

Question 33.

The product of two negative integers is

(a) a positive integer

(b) a negative integer

(c) either a positive integer or a negative integer

(d) none of these.

## Answer

Answer: (a) a positive integer

Question 34.

The product of three negative integers is

(a) a positive integer

(b) a negative integer

(c) either a positive integer or a negative integer

(d) none of these.

## Answer

Answer: (b) a negative integer

Question 35.

(-1) × (-1) × (-1) × ……… 10 times is equal to

(a) 1

(b) -1

(c) 1 or -1

(d) none of these.

## Answer

Answer: (a) 1

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