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Riddle puzzle: Exponents

Solve each question. Find your answer in the decoder and write its letter in the box. The letters answer the riddle.

Name

Date

What did the triangle say to the circle?

  1. 1.Write 10 × 10 × 10 × 10 as a power (for example 4^3).
  2. 2.(5⁵)⁵ = 5ᵏ. What is k?
  3. 3.Simplify 4x⁶ × 3x⁶.
  4. 4.Simplify 2a⁵ × 4a².
  5. 5.Write 8 × 8 × 8 × 8 × 8 × 8 as a power (for example 4^3).
  6. 6.Simplify 8x¹² ÷ 2x⁶.
  7. 7.Simplify 2y² × 4y³.
  8. 8.Evaluate 3 × 2³.
  9. 9.In 12⁹, what is the exponent?
  10. 10.Write 4⁵ as a power of 2. What is the exponent?
  11. 11.5¹¹ ÷ 5⁵ = 5ᵏ. What is k?
  12. 12.Evaluate 4² + 9 × 2.
  13. 13.Work out 3⁸ ÷ 3⁵ as a number.
  14. 14.Simplify 16x⁶ ÷ 4x⁵.

Decoder

7Z

34E

12X

25O

12x¹²U

8a⁷R

8J

4x⁶P

6L

10⁴Y

8y⁵O

4xS

27S

24I

8⁶E

9N

10T

4Q

The answer to the riddle

1
2
3
4
5
6
7
8
9
10
11
12
13
14

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Answer key: Exponents riddle

What did the triangle say to the circle? You're pointless!

  1. 1. 10⁴ = Y
  2. 2. 25 = O
  3. 3. 12x¹² = U
  4. 4. 8a⁷ = R
  5. 5. 8⁶ = E
  6. 6. 4x⁶ = P
  7. 7. 8y⁵ = O
  8. 8. 24 = I
  9. 9. 9 = N
  10. 10. 10 = T
  11. 11. 6 = L
  12. 12. 34 = E
  13. 13. 27 = S
  14. 14. 4x = S

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