PSEB 7th Class Maths MCQ Chapter 13 Exponents and Powers

Punjab State Board PSEB 7th Class Maths Book Solutions Chapter 13 Exponents and Powers MCQ Questions with Answers.

PSEB 7th Class Maths Chapter 13 Exponents and Powers MCQ Questions

Multiple Choice Questions :

Question 1.
The value of (-1)¹⁰¹
(a) 1
(b) -1
(c) 101
(d) -101
Answer:
(b) -1

Question 2.
The value of (-1)¹⁰⁰ is:
(a) 100
(b) -100
(c) 1
(d) -1
Answer:
(c) 1

Question 3.
Find the value of 2⁶ will be :
(a) 32
(b) 64
(c) 16
(d) 8
Answer:
(b) 64

Question 4.
The exponential form of 6 × 6 × 6 × 6 is :
(a) 6²
(b) 6°
(c) 6⁴
(d) 6⁵
Answer:
(c) 6⁴

Question 5.
The exponential notation of 512 is :
(a) 2⁶
(b) 2⁷
(c) 2⁸
(d) 2⁹
Answer:
(d) 2⁹

Question 6.
The exponential form of a × a × a × c × c × c × c × d is :
(a) a³c⁴d
(b) a⁸cd
(c) a³c⁵d
(d) ab⁵d³
Answer:
(a) a³c⁴d

Question 7.
Simplify: (-3)² × (-5)².
(a) 45
(b) 75
(c) 15
(d) 225
Answer:
(d) 225

Question 8.
Choose correct expanded form of 47051 out of the following :
(a) 4 × 10⁶ + 7 × 10⁵ + 5 × 10³ + 1 × 10²
(b) 4 × 10⁵ + 7 × 10⁴ + 5 × 10 + 1
(c) 4 × 10⁴ + 7 × 10³ + 5 × 10 + 1
(d) 4 × 10⁴ + 7 × 10³ + 5 × 10² + 1
Answer:
(c) 4 × 10⁴ + 7 × 10³ + 5 × 10 + 1

Question 9.
Find the number for the following form :
3 × 10⁴ + 7 × 10² + 5 × 10°
(a) 3075
(b) 30705
(c) 375
(d) 3750
Answer:
(b) 30705

Question 10.
The value of (2° + 3° + 4°) will be :
(a) 9
(b) 3
(c) 5
(d) 24
Answer:
(b) 3

Fill in the blanks :

Question 1.
The value of (1000)° is ………………
Answer:
1

Question 2.
The value of (1)¹⁰⁰⁰ is ………………
Answer:
1

Question 3.
The value of 2⁵ is ………………
Answer:
32

Question 4.
The exponential notation of 512 is ………………
Answer:
29

Question 5.
The exponential form of 5 × 5 × 5 × 5 × 5 × 5 is ………………
Answer:
56

Write True or False :

Question 1.
The value of a⁰ is 1. (True/False)
Answer:
True

Question 2.
The value of 2⁰ × 3⁰ × 4⁰ will be 24. (True/False)
Answer:
False

Question 3.
The value of (3⁰ + 5⁰ × 2⁰ will be 2. (True/False)
Answer:
True

Question 4.
a^m ÷ aⁿ = a^mn (True/False)
Answer:
False

Question 5.
(a^m)ⁿ = a^mn (True/False)
Answer:
True