Operations with Integers Class 8 MCQ Maths Part 2 Chapter 2 - #NCSOLVE 📚

Students often review Class 7 Maths MCQ and Class 7 Maths Part 2 Chapter 2 Operations with Integers Class MCQ Questions Online Test with Answers for quick revisions before tests.

MCQ on Operations with Integers Class 7

Operations with Integers Class MCQ Class 7

Class 7 Operations with Integers Class MCQ

Multiple Choice Questions (MCQs)

Question 1.
The sum of two integers is -18. If one of them is -11 , the other one is………..
(a) -29
(b) -7
(c) 7
(d) 29
Solution:
(b) -7

Question 2.
(-15) × 6 is not equal to………
(a) 15 × (-6)
(b) -(15 × 6)
(c) (-15) × (-6)
(d) 6 × (-15)
Solution:
(c) (-15) × (-6)

Question 3.
(-5)+(-20) ÷ (-4)+9 is equal to………
(a) 9
(b) -6
(c) 4
(d) None of these
Solution:
(a) 9

Question 4.
Which of the following statements is false?
(a) -9+(-7)=-16
(b) 3+(-2)=1
(c) 10+(-11)=-1
(d) -8+2=6
Solution:
(d) -8+2=6

Question 5.
Identify the property reflected in the following:
(-6) × (-3)=(-3) × (-6)
(a) Associative property
(b) Commutative property
(c) Distributive property
(d) None of these
Solution:
(b) Commutative property

Assertion and Reason Questions

In the following questions (6-7), a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option as:
(a) Both assertion and reason are true, and the reason is the correct explanation of the assertion.
(b) Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
(c) Assertion is true, and the reason is false.
(d) Assertion is false, and the reason is true.

Question 1.
Assertion (A): 24 ÷(6 ÷ 2)=(24 ÷ 6) ÷ 2
Reason (R): Associative property does not hold for the division of integers.
Solution:
(d) Assertion is false, and the reason is true.

Question 2.
Assertion (A): (2 ÷3) × 4=2 × (3 ÷4)
Reason (R): Multiplication of integers is commutative.
Solution:
(b) Both assertion and reason are true, but the reason is not the correct explanation of the assertion.

Fill in the blanks:

Question 1.
(-9) × ………. =0
Solution:
0

Question 2.
7 × ………… = – 14
Solution:
-2

Question 3.
……….. × 1 = – 31
Solution:
-31

Question 4.
8÷(-8)= ………..
Solution:
-1

Question 5.
(-2) × [(-4)+7]=(-2) × ………..+(-2) × 7
Solution:
-4

Match the following:

Solution:

Column A		Column B
(a)	(-7) x 1	(iii)	-7
(b)	(-x) ÷ (-y)	(iv)	9
(c)	78 x (-1)	(i)	-78
(d)	29 x 0	(ii)	0
(e)	-(-9)	(iv)	9
(f)	6 ÷ (-2)	(v)	-3

Answer the following

Question 1.
Write a pair of integers whose product is -24 and whose difference is 10.
Solution:
(4,-6) or (6,-4)

Question 2.
The temperature of a cup of hot chocolate is 90°C. Every minute, the temperature drops by 4°C. What will be the temperature of the hot chocolate after 15 minutes?
Solution:
30°c

Evaluate the following:

Question 1.
[(-8) × (-20)] ÷ (-10)
Solution:
-16

Question 2.
35 × (-40) + (-40) × (-25)
Solution:
-400

Question 3.
(-2) × (-7) ×(-3) × (-4) × (-1)
Solution:
-168

Question 4.
(-18) + (-12) ÷ (-3) × (-4)
Solution:
-34

Case Based Question

A bakery needs to cool down the oven after baking. Initially, the oven temperature is 180°C. For the first 2 hours, the temperature decreases at a rate of 5°C per hour. For the next 3 hours, the temperature decreases at a rate of 4°C per hour. Further the temperature decreases at the rate of 3° C per hour.

Based on the above discussion, answer the following questions:
(a) What will be the oven temperature 6 hours after the cooling process begins?
Solution:
155°C

(b) How much total temperature has the oven lost after 6 hours?
Solution:
25°C

The post Operations with Integers Class 8 MCQ Maths Part 2 Chapter 2 appeared first on Learn CBSE.

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