# Olympiad Test: Exponents and Powers

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## 20 Questions MCQ Test Mathematics (Maths) Class 7 | Olympiad Test: Exponents and Powers

Olympiad Test: Exponents and Powers for Class 7 2022 is part of Mathematics (Maths) Class 7 preparation. The Olympiad Test: Exponents and Powers questions and answers have been prepared according to the Class 7 exam syllabus.The Olympiad Test: Exponents and Powers MCQs are made for Class 7 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Exponents and Powers below.
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Olympiad Test: Exponents and Powers - Question 1

### The value of (−1)250 is

Olympiad Test: Exponents and Powers - Question 2

### The value of (−1)75 is

Olympiad Test: Exponents and Powers - Question 3

### The value of (−1)450 is

Olympiad Test: Exponents and Powers - Question 4

The value of (−1)91 is

Olympiad Test: Exponents and Powers - Question 5

The value of (−1)310 is

Detailed Solution for Olympiad Test: Exponents and Powers - Question 5

Since the power is an even integer , the minus sign will get cancelled. So we will receive 1 only.

Olympiad Test: Exponents and Powers - Question 6

The value of 28 is

Olympiad Test: Exponents and Powers - Question 7

Simplify and write in exponential form of 22x 25

Olympiad Test: Exponents and Powers - Question 8

Simplify and write in exponential form of (− 4)100× (−4)20

Detailed Solution for Olympiad Test: Exponents and Powers - Question 8

When bases are same, powers are added. So we will add powers
(-4)100(-4)20=(-4)120

Olympiad Test: Exponents and Powers - Question 9

Simplify and write in exponential form of 52× 57× 512

Olympiad Test: Exponents and Powers - Question 10

The value of 22 is

Olympiad Test: Exponents and Powers - Question 11

The exponent in the expression 37 is _______

Detailed Solution for Olympiad Test: Exponents and Powers - Question 11

3 raised to the power of 7 here three is called base and other one is exponent.

Olympiad Test: Exponents and Powers - Question 12

The value of 30 is ________ .

Olympiad Test: Exponents and Powers - Question 13

The value of 50 is ________ .

Olympiad Test: Exponents and Powers - Question 14

The value of 70 is ________ .

Olympiad Test: Exponents and Powers - Question 15

The value of 110 is ________ .

Olympiad Test: Exponents and Powers - Question 16

Multiplicative inverse of 1/5 is

Olympiad Test: Exponents and Powers - Question 17

Multiplicative inverse of 1/7 is

Olympiad Test: Exponents and Powers - Question 18

Multiplicative inverse of 1/3 is

Olympiad Test: Exponents and Powers - Question 19

Multiplicative inverse of 9 is

Olympiad Test: Exponents and Powers - Question 20

Multiplicative inverse of 21 is

Detailed Solution for Olympiad Test: Exponents and Powers - Question 20

Multiplicative inverse means is a number which when multiplied by x yields the multiplicative identity, 1. A number multiplied by 21 wich give 1 is the reciprocal of 21 which is 1/21

## Mathematics (Maths) Class 7

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