Year 10 Scientific Notation Worksheet — Level 2 — Practice Set 4 — 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 — Practice Set 4 — Answers
Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 2,700,000 in scientific notation.
Answer: 2.7 × 106
Move the decimal point 6 places.
2.Write 9.6 × 102 as an ordinary number.
Answer: 960
3.Write 66 in scientific notation.
Answer: 6.6 × 101
Move the decimal point 1 places.
4.Write 4.5 × 10−1 as an ordinary number.
Answer: 0.45
5.Write 7.2 × 104 as an ordinary number.
Answer: 72,000
6.Write 6.1 × 101 as an ordinary number.
Answer: 61
7.Write 2.2 × 10−3 as an ordinary number.
Answer: 0.0022
8.Write 2,000 in scientific notation.
Answer: 2 × 103
Move the decimal point 3 places.
9.Write 6.6 × 103 as an ordinary number.
Answer: 6,600
10.Write 3,600,000 in scientific notation.
Answer: 3.6 × 106
Move the decimal point 6 places.
11.Write 4 × 104 as an ordinary number.
Answer: 40,000
12.Write 1.1 × 104 as an ordinary number.
Answer: 11,000
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.