7th Grade Laws of Exponents Worksheet — Level 1 — Practice Set 2 — Answers
Answer sheet with worked solutions for the 7th Grade exponents & scientific notation worksheet.
7th Grade Laws of Exponents Worksheet — Level 1 — Practice Set 2 — Answers
Use the laws of exponents. Write answers with positive exponents.
Answer: x10
Add the exponents: 3 + 7 = 10
Answer: x10
Add the exponents: 7 + 3 = 10
Answer: x17
Add the exponents: 8 + 9 = 17
Answer: x10
Add the exponents: 5 + 5 = 10
Answer: x7
Add the exponents: 5 + 2 = 7
Answer: x10
Add the exponents: 6 + 4 = 10
Answer: x1
Subtract the exponents: 8 − 7 = 1
Answer: x6
Subtract the exponents: 8 − 2 = 6
Answer: x2
Subtract the exponents: 7 − 5 = 2
Answer: x10
Add the exponents: 8 + 2 = 10
Answer: x9
Add the exponents: 3 + 6 = 9
Answer: x4
Subtract the exponents: 10 − 6 = 4
Answer: x5
Subtract the exponents: 10 − 5 = 5
Answer: x12
Add the exponents: 3 + 9 = 12
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.
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