Year 8 Index Laws Worksheet — Level 1 (Set 3) — Answers
Answer sheet with worked solutions for the Year 8 indices & scientific notation worksheet.
Success TutoringWorksheetsAnswer sheetYear 8 · Mathematics · Indices & Scientific NotationYear 8 Index Laws Worksheet — Level 1 (Set 3) — Answers
Use the index laws. Write answers with positive indices.
1.Simplify: x8 × x4
Answer: x12
Add the indices: 8 + 4 = 12
2.Simplify: x11 ÷ x9
Answer: x2
Subtract the indices: 11 − 9 = 2
3.Simplify: x5 × x8
Answer: x13
Add the indices: 5 + 8 = 13
4.Simplify: x5 ÷ x2
Answer: x3
Subtract the indices: 5 − 2 = 3
5.Simplify: x2 × x5
Answer: x7
Add the indices: 2 + 5 = 7
6.Simplify: x12 ÷ x9
Answer: x3
Subtract the indices: 12 − 9 = 3
7.Simplify: x12 ÷ x4
Answer: x8
Subtract the indices: 12 − 4 = 8
8.Simplify: x8 ÷ x4
Answer: x4
Subtract the indices: 8 − 4 = 4
9.Simplify: x4 × x9
Answer: x13
Add the indices: 4 + 9 = 13
10.Simplify: x12 ÷ x8
Answer: x4
Subtract the indices: 12 − 8 = 4
11.Simplify: x10 ÷ x3
Answer: x7
Subtract the indices: 10 − 3 = 7
12.Simplify: x8 × x7
Answer: x15
Add the indices: 8 + 7 = 15
13.Simplify: x6 × x4
Answer: x10
Add the indices: 6 + 4 = 10
14.Simplify: x9 × x7
Answer: x16
Add the indices: 9 + 7 = 16
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