eurekami

Multiply powers with the same base

8th grade (Year 9 in England) · 16 questions · Common Core: 8.EE.A.1 · England: KS3 Number, GCSE Foundation Number

Name

Date

Score/ 16

1
Question 1
Simplify 3a⁵ × 4a⁷.
- A. 12a³⁵
- B. 12a¹²
- C. 7a³⁵
- D. 7a¹²
Question 2
6⁴ × 6⁵ = 6ⁿ. What is n?
Answer
Question 3
Felix says 2⁵ × 2⁴ = 4⁹. Work out the correct value of 2⁵ × 2⁴ as a number.
Answer
4
Question 4
Simplify 5a⁵ × 4a⁵.
- A. 20a¹⁰
- B. 20a²⁵
- C. 9a²⁵
- D. 9a¹⁰
Question 5
6⁹ × 6⁷ = 6ⁿ. What is n?
Answer
Question 6
Grace says 2² × 2² = 4⁴. Work out the correct value of 2² × 2² as a number.
Answer
7
Question 7
Simplify 2y² × 3y⁴.
- A. 6y⁶
- B. 5y⁸
- C. 5y⁶
- D. 6y⁸
Question 8
5⁶ × 5⁹ = 5ⁿ. What is n?
Answer
Question 9
Kofi says 2⁴ × 2³ = 4⁷. Work out the correct value of 2⁴ × 2³ as a number.
Answer
10
Question 10
Simplify 3y³ × 2y².
- A. 6y⁶
- B. 5y⁶
- C. 5y⁵
- D. 6y⁵
Question 11
6⁵ × 6⁵ = 6ⁿ. What is n?
Answer
Question 12
Kai says 2⁴ × 2⁵ = 4⁹. Work out the correct value of 2⁴ × 2⁵ as a number.
Answer
13
Question 13
Simplify 4x³ × 4x³.
- A. 16x⁹
- B. 8x⁹
- C. 8x⁶
- D. 16x⁶
Question 14
9³ × 9⁵ = 9ⁿ. What is n?
Answer
Question 15
Grace says 2⁴ × 2⁵ = 4⁹. Work out the correct value of 2⁴ × 2⁵ as a number.
Answer
16
Question 16
Simplify 4y⁴ × 5y⁵.
- A. 9y²⁰
- B. 20y²⁰
- C. 20y⁹
- D. 9y⁹

All done? Color in the animal! · Free from eurekami.com/math

for the adult only

Answer key: Multiply powers with the same base