Operations with Integers Class 7 MCQ
hardOperations with Integers Class 7 MCQ
Operations with Integers Class 7 MCQ
Question 1.
Consider an incomplete statement.
The sum of a _______ and a ________ is a whole number
Which words when filled in the blanks make the statement correct?
(a) positive integer, negative integer
(b) positive integer, whole number
(c) negative integer, negative integer
(d) negative integer, whole number
Solution:
(b) positive integer, whole number
Question 2.
Two integers p and q are at equal distance from 0 on a number line. Which relation between p and q is correct?
(a) p = -q
(b) p = q
(c) p + q - 1
(d) p - q = 1
Solution:
(a) p = -q
Question 3.
What is the value of - 4 (- 200 + 125) ?
(a) - 1300
(b) - 300
(c) 300
(d) 1300
Solution:
(c) 300
Question 4.
What is the value of the expression below-?
- 5{(- 16 + 18) × (- 11 + 2)}
(a) 90
(b) - 55
(c) - 90
(d) 55
Solution:
(a) 90
Question 5.
What is the quotient when an integer is divided by its additive inverse?
(a) 1
(b) 0
(c) -1
(d) the integer itself
Solution:
(c) -1
Case Study
Question 1.
(a) Odd Man Out!
Observe the following pairs of integers and write the odd man out:
(i) (16, -4)
(ii) (-18, 6)
(iii) (-2, 32)
(iv) (8, -8)
Fill in the blanks :
(b) Quotient, when first integer of (16, -4) is divided by the second integer, is ________.
(c) Quotient, when second integer of (-2, 32) is divided by the first integer, is ________.
(d) Product of the two integers of (-18, 6) is ________.
(e) Quotient, when first integer of (-18, 6) is divided by the second integer, is _______.
(f) Product of the integers of (16, -4) is _________.
Solution:
(a) (ii)
(b) -4
(c) -16
(d) -108
(e) -3
( f) -64
Question 2.
Same or Not!
(a) Expression -35 × 107 is not the same as
(i) -35 × (100 + 7)
(ii) (-30 - 5) × 107
(iii) -35 × 7 + 100
(iv) (-35) × 7 + (-35) × 100
Solution:
(iii) -35 × 7 + 100
(b) (-16) ÷ 4 is not the same as
(i) -(16 + 4)
(ii) (-4) + 16
(iii) -4 × 1
(iv) 16 ÷ (-4)
Solution:
(ii) (-4) + 16
(c) (-10) × (-5) + (-7) is the same as
(i) -43
(ii) +57
(iii) +43
(iv) -57
Solution:
(iii) +43
(d) 43 + (-43) × (-99) is the same as
(i) 4300
(ii) 4257
(iii) -4214
(iv) -4300
Solution:
(i) 4300
(e) (-27) × (4 + 6) is not the same as
(i) (-27) × 10
(ii) (-27) × 4 + (-27) × 6
(iii) (-27) × 4 × 6
(iv) -270
Solution:
(iii) (-27) × 4 × 6