Year 9 Index Laws Worksheet — Level 3 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 9 indices & scientific notation worksheet.
Success TutoringWorksheetsAnswer sheetYear 9 · Mathematics · Indices & Scientific NotationYear 9 Index Laws Worksheet — Level 3 — Practice Set 2 — Answers
Use the index laws. Write answers with positive indices.
Answer: 20x11
5 × 4 = 20; add the indices: 11
Answer: x10
Multiply the indices: 5 × 2 = 10
Answer: 1
Anything (except 0) to the power of 0 equals 1.
Answer: x24
Multiply the indices: 6 × 4 = 24
Answer:
A negative index means the reciprocal: 1 ÷ 33 = 1 ÷ 27
Answer: 1
Anything (except 0) to the power of 0 equals 1.
Answer: x12
Multiply the indices: 2 × 6 = 12
Answer: x30
Multiply the indices: 6 × 5 = 30
Answer:
A negative index means the reciprocal: 1 ÷ 21 = 1 ÷ 2
Answer: 25x11
5 × 5 = 25; add the indices: 11
Answer: 12x11
6 × 2 = 12; add the indices: 11
Answer: x40
Multiply the indices: 5 × 8 = 40
Answer: 9x7
3 × 3 = 9; add the indices: 7
Answer: 1
Anything (except 0) to the power of 0 equals 1.
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