Exponents
Grades 5 to 8 (Years 5 to 9 in England) · 16 questions · Common Core: 6.EE.A.1, 8.EE.A.1 · England: KS3 Number, GCSE Foundation Number, Y6 Number – multiplication and division
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Date
Score/ 16
Question 1
Write 4³ as a power of 2. What is the exponent?
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Question 2
Evaluate 4 × 2³.
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Question 3
Write 11 × 11 × 11 × 11 × 11 as a power (for example 4^3).
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Question 4
Jamal says 2⁵ × 2³ = 4⁸. Work out the correct value of 2⁵ × 2³ as a number.
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Question 5
In 8⁷, what is the exponent?
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Question 6
(2⁶)³ = 2ᵏ. What is k?
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Question 7
8⁶ ÷ 8³ = 8ᵏ. What is k?
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Question 8
7³ × 7⁸ = 7ⁿ. What is n?
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Question 9
Simplify 18x¹¹ ÷ 6x⁵.
- A. 3x²
- B. 3x⁶
- C. 12x⁶
- D. 3x¹⁶
Question 10
Simplify (3x⁴)³.
- A. 9x¹²
- B. 3x¹²
- C. 27x⁷
- D. 27x¹²
Question 11
Yuki says 4⁴ = 16. What mistake did Yuki make, and what is the correct value?
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Question 12
3² + 5³ = ?
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Question 13
A square patio has an area of 49 m². How long is each side?
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Question 14
Work out 3⁸ ÷ 3⁵ as a number.
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Question 15
Evaluate 4³.
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Question 16
Simplify 5a² × 4a³.
- A. 9a⁶
- B. 20a⁵
- C. 20a⁶
- D. 9a⁵
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