Year 10 Scientific Notation Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the Year 10 indices & scientific notation worksheet.
Success TutoringWorksheetsAnswer sheetYear 10 · Mathematics · Indices & Scientific NotationYear 10 Scientific Notation Worksheet — Level 2 — Answers
Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 4.7 × 10−1 as an ordinary number.
Answer: 0.47
2.Write 62,000,000 in scientific notation.
Answer: 6.2 × 107
Move the decimal point 7 places.
3.Write 6.5 × 10−1 as an ordinary number.
Answer: 0.65
4.Write 47,000,000 in scientific notation.
Answer: 4.7 × 107
Move the decimal point 7 places.
5.Write 7.4 × 106 as an ordinary number.
Answer: 7,400,000
6.Write 3.6 × 104 as an ordinary number.
Answer: 36,000
7.Write 2.2 × 104 as an ordinary number.
Answer: 22,000
8.Write 5.8 × 102 as an ordinary number.
Answer: 580
9.Write 490 in scientific notation.
Answer: 4.9 × 102
Move the decimal point 2 places.
10.Write 5.5 × 10−2 as an ordinary number.
Answer: 0.055
11.Write 3.5 × 10−4 as an ordinary number.
Answer: 0.00035
12.Write 0.000087 in scientific notation.
Answer: 8.7 × 10−5
Move the decimal point 5 places.
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.