Explore numerous Class 7 Maths MCQ and Ganita Prakash Class 7 Maths Part 2 Chapter 2 Operations with Integers MCQ Online Test with Answers provided with detailed solutions by looking below.
MCQ on Operations with Integers Class 7
Operations with Integers Class MCQ Class 7
Class 7 Operations with Integers Class MCQ
Question 1.
Find (-12)+(+4) :
(a) 9
(b) -8
(c) 1
(d) -6
Solution:
-12+(+4) = – 12+4
= – 8
Answer:
(b) -8
Question 2.
Subtract 9 from 4 :
(a) -5
(b) 13
(c) -13
(d) 4
Solution:
4-9=4+(-9)=-5
Answer:
(a) -5
Question 3.
[(-31)+72]+(-14)=(-31)+(72+ ……………)
(a) -31
(b) 72
(c) -14
(d) 10
Solution:
[(-31)+72] +(-14)
=(-31)+[72+(-14)]
Answer:
(c) -14
Question 4.
-36 × 72+(-36) × 28:
(a) -3500
(b) 3600
(c) 3500
(d) -3600
Solution:
-36 × 72+(-36) × 28
=-36(72+28)
=-36(100)
=-3600
Answer:
(d) -3600
Question 5.
(-100) ÷ 10= ?
(a) -10
(b) 10
(c) 100
(d) -100
Solution:
(-100) ÷ 10=\(\frac{-100}{10}\)=-10
Answer:
(a) -10
Operations with Integers Class 7 Assertion and Reason Questions
Instructions:
In the following questions, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
(e) Both A and R are false.
Question 1.
Assertion (A) : The product of a positive integer and a negative integer is always negative.
Reason (R) : Multiplication of two integers with unlike signs results in a negative product.
Solution:
(a) Both A and R are true and R is the correct explanation of A.
According to the rule of signs, the product of a positive and a negative number is always negative. The reason correctly explains the assertion.
Question 2.
Assertion (A) : The sum of two negative integers is always greater than both integers.
Reason (R) : Adding negative integers gives a more negative value.
Solution:
(d) A is false but R is true.
The assertion is false-when we add two negative integers, the result is a more negative number (i.e., smaller). The reason is true and correctly describes what happens during the addition.
Question 3.
Assertion (A) : Zero is the identity for addition in the set of integers.
Reason (R) : Adding zero to any integer does not change its value.
Solution:
(a) Both A and R are true and R is the correct explanation of A.
The additive identity property states that adding zero to any number results in the same number. The reason is correct and explains the assertion accurately.
Question 4.
Assertion (A) : The product of three negative integers is always negative.
Reason (R) : The product of two negative integers is positive, and multiplying it by another negative integer makes it negative again.
Solution:
(a) Both A and R are true and R is the correct explanation of A.
The rule of signs confirms this: (-×-=+), then (+×-= -). The reason is correct and clearly explains the assertion.
Question 5.
Assertion (A) : Subtraction of integers is the same as addition of the additive inverse.
Reason (R) : To subtract an integer, we add its opposite.
Answer:
(b) Both A and R are true but R is not the correct explanation of A.
Both assertion and reason are true-this is the fundamental rule of integer subtraction- but the reason, while correct, is not the direct explanation of the assertion’s concept.
Operations with Integers Class 7 Fill in the blanks
Question 1.
o is always ………… every negative integer. (greater than/less than)
Answer:
greater than
Question 2.
-1 is the greatest ………… integer. (positive/negative)
Answer:
negative
Question 3.
o is ………… every positive integer. (less than/grater than)
Answer:
less than
Question 4.
54+ …………=112 (58/68)
Answer:
58
Question 5.
(-13)+(-82)= …………. (-95/-85)
Answer:
-95
Question 6.
Multiplicative inverse of 18= …………. \(\left(\frac{5}{18} / \frac{1}{18}\right)\)
Answer:
\(\frac{1}{18}\)
Question 7.
-53+ …………=-53. ( 10 / 0 )
Answer:
0
Question 8.
(-2)-(-10)= …………. (8,18)
Answer:
8
Question 9.
(-18) × (-5)= …………. (85/90)
Answer:
90
Question 10.
(-80) ÷ (-16)= …………. (5,6)
Answer:
5
Operations with Integers Class 7 True or False
Question 1.
On subtracting (+10) from 25, we get 15.
Answer:
True
Question 2.
(-15)+(-32)=17.
Answer:
False
Question 3.
(-12) × (+8)=-96.
Answer:
True
Question 4.
0 multiply by any number =0.
Answer:
True
Question 5.
31-(8+20)=59.
Answer:
False
Question 6.
(-18) × (-1)=18.
Answer:
True
Question 7.
(-1) × (-2) ×(-3)×(-4) ×(-5)=120.
Answer:
False
Question 8.
The sum of two integers is 93. If one of them is -59, the other one is 152.
Answer:
True
Question 9.
(-70)×(-3)=-210
Answer:
False
Question 10.
[32+2× 17+(-6)]
Answer:
True