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Exponents and Powers Practice Questions

Class 7 · Mathematics · 1042 free MCQs with instant results and detailed explanations.

1042
Total
319
Easy
528
Medium
195
Hard

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Topics in Exponents and Powers

Expressing Large Numbers 299
Standard Form 420
Laws of Exponents 323

Sample Questions from Exponents and Powers

Here are 10 sample questions. Start a quiz to get randomized questions with scoring.

Q1
Easy
What is the value of 2^3?
A. 8
B. 6
C. 9
D. 7
Show Answer & Explanation
Correct Answer: A
2 raised to the power of 3 means 2 multiplied by itself 3 times: 2 × 2 × 2 = 8.
Q2
Easy
Which of the following is equal to 5^0?
A. 0
B. 1
C. 5
D. 10
Show Answer & Explanation
Correct Answer: B
Any non-zero number raised to the power of 0 is equal to 1.
Q3
Easy
What is the product of 3^4 and 3^2?
A. 3^6
B. 3^8
C. 3^2
D. 3^3
Show Answer & Explanation
Correct Answer: A
According to the law of exponents, when multiplying like bases, you add the exponents: 4 + 2 = 6.
Q4
Medium
What is the value of 3^4 ÷ 3^2?
A. 3^2
B. 3^6
C. 1
D. 3^0
Show Answer & Explanation
Correct Answer: A
According to the laws of exponents, when dividing like bases, we subtract the exponents: 3^(4-2) = 3^2.
Q5
Medium
Which of the following expressions is equivalent to (2^3)^2?
A. 2^5
B. 2^6
C. 2^9
D. 2^1
Show Answer & Explanation
Correct Answer: B
Using the power of a power rule, we multiply the exponents: 2^(3×2) = 2^6.
Q6
Medium
If a = 5 and b = 3, what is the value of a^2 × b^3?
A. 125
B. 135
C. 150
D. 175
Show Answer & Explanation
Correct Answer: A
Calculating gives: 5^2 = 25 and 3^3 = 27, so the product is 25 × 27 = 675.
Q7
Medium
What is the result of 4^0?
A. 0
B. 1
C. 4
D. Undefined
Show Answer & Explanation
Correct Answer: B
Any non-zero number raised to the power of zero is 1, hence 4^0 = 1.
Q8
Hard
What is the simplified form of (5^3)²?
A. 5^5
B. 5^6
C. 5^9
D. 25^3
Show Answer & Explanation
Correct Answer: B
Using the law of exponents (a^m)^n = a^(m*n), we have (5^3)² = 5^(3*2) = 5^6.
Q9
Hard
If x = 2^3 and y = 2^2, what is the value of x/y?
A. 2
B. 3
C. 4
D. 1
Show Answer & Explanation
Correct Answer: A
Here, x = 2^3 and y = 2^2. By using the division of exponents, x/y = 2^3 ÷ 2^2 = 2^(3-2) = 2^1 = 2.
Q10
Hard
Which of the following is equivalent to (x^3)^2?
A. x^5
B. x^6
C. x^1
D. x^9
Show Answer & Explanation
Correct Answer: B
According to the power of a power law, (a^m)^n = a^(m*n). Thus, (x^3)^2 = x^(3*2) = x^6.

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Exponents and Powers — Class 7 Mathematics Practice Questions Online

This page contains 1042 practice MCQs for the chapter Exponents and Powers in Class 7 Mathematics. The questions are organized by difficulty — 319 easy, 528 medium, 195 hard — so you can choose the right level for your preparation.

Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 3 topics, giving you comprehensive coverage of the entire chapter.