9th Grade Laws of Exponents Worksheet — Level 3 — Practice Set 2 — Answers
Answer sheet with worked solutions for the 9th Grade exponents & scientific notation worksheet.
Success TutoringWorksheetsAnswer sheet9th Grade · Mathematics · Indices & Scientific Notation9th Grade Laws of Exponents Worksheet — Level 3 — Practice Set 2 — Answers
Use the laws of exponents. Write answers with positive exponents.
Answer:
A negative index means the reciprocal: 1 ÷ 33 = 1 ÷ 27
Answer: 12x10
3 × 4 = 12; add the exponents: 10
Answer: 1
Anything (except 0) to the power of 0 equals 1.
Answer: 10x11
2 × 5 = 10; add the exponents: 11
Answer: 1
Anything (except 0) to the power of 0 equals 1.
Answer: x63
Multiply the exponents: 9 × 7 = 63
Answer: x32
Multiply the exponents: 4 × 8 = 32
Answer:
A negative index means the reciprocal: 1 ÷ 53 = 1 ÷ 125
Answer: 18x7
6 × 3 = 18; add the exponents: 7
Answer:
A negative index means the reciprocal: 1 ÷ 22 = 1 ÷ 4
Answer: x14
Multiply the exponents: 7 × 2 = 14
Answer: 20x8
4 × 5 = 20; add the exponents: 8
Answer: 9x14
3 × 3 = 9; add the exponents: 14
Answer: 4x13
2 × 2 = 4; add the exponents: 13
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.