8th Grade Laws of Exponents Worksheet — Level 2 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 8th Grade exponents & scientific notation worksheet.
8th Grade Laws of Exponents Worksheet — Level 2 — Practice Set 4 — Answers
Use the laws of exponents. Write answers with positive exponents.
Answer: 4x7
2 × 2 = 4; add the exponents: 7
Answer: x12
Multiply the exponents: 6 × 2 = 12
Answer: 25x18
5 × 5 = 25; add the exponents: 18
Answer: x18
Add the exponents: 9 + 9 = 18
Answer: 6x9
3 × 2 = 6; add the exponents: 9
Answer: x11
Add the exponents: 7 + 4 = 11
Answer: x24
Multiply the exponents: 3 × 8 = 24
Answer: 8x7
2 × 4 = 8; add the exponents: 7
Answer: x42
Multiply the exponents: 6 × 7 = 42
Answer: x9
Multiply the exponents: 3 × 3 = 9
Answer: x5
Subtract the exponents: 7 − 2 = 5
Answer: x1
Subtract the exponents: 10 − 9 = 1
Answer: x3
Subtract the exponents: 9 − 6 = 3
Answer: x8
Add the exponents: 4 + 4 = 8
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
- Celebrate what went well first, then pick one thing to work on next.
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