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Olympiad Test: Exponents and Powers - 1 - Class 7 MCQ


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10 Questions MCQ Test Mathematics (Maths) Class 7 - Olympiad Test: Exponents and Powers - 1

Olympiad Test: Exponents and Powers - 1 for Class 7 2024 is part of Mathematics (Maths) Class 7 preparation. The Olympiad Test: Exponents and Powers - 1 questions and answers have been prepared according to the Class 7 exam syllabus.The Olympiad Test: Exponents and Powers - 1 MCQs are made for Class 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Exponents and Powers - 1 below.
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Olympiad Test: Exponents and Powers - 1 - Question 1

The value of (−1)250 is

Olympiad Test: Exponents and Powers - 1 - Question 2

The value of (−1)75 is

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Olympiad Test: Exponents and Powers - 1 - Question 3

The value of (−1)450 is

Detailed Solution for Olympiad Test: Exponents and Powers - 1 - Question 3

Explanation:

- To find the value of (-1)450, we need to consider the property of exponents.
- Any non-zero number raised to an even power will result in a positive number, and any non-zero number raised to an odd power will result in a negative number.
- Since -1 is being raised to the 450th power, which is an even number, the result will be positive.
- Therefore, the value of (-1)450 is 1.

Olympiad Test: Exponents and Powers - 1 - Question 4

The value of (−1)91 is

Olympiad Test: Exponents and Powers - 1 - Question 5

The value of (−1)310 is

Detailed Solution for Olympiad Test: Exponents and Powers - 1 - 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 - 1 - Question 6

The value of 28 is

Olympiad Test: Exponents and Powers - 1 - Question 7

Simplify and write in exponential form of 22x 25

Olympiad Test: Exponents and Powers - 1 - Question 8

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

Detailed Solution for Olympiad Test: Exponents and Powers - 1 - 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 - 1 - Question 9

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

Olympiad Test: Exponents and Powers - 1 - Question 10

The value of 22 is

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