Year 10 Scientific Notation Worksheet — Level 1 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 10 indices & scientific notation worksheet.
Year 10 Scientific Notation Worksheet — Level 1 — Practice Set 2 — Answers
Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 1.4 × 106 as an ordinary number.
Answer: 1,400,000
2.Write 600 in scientific notation.
Answer: 6 × 102
Move the decimal point 2 places.
3.Write 760 in scientific notation.
Answer: 7.6 × 102
Move the decimal point 2 places.
4.Write 9,600,000 in scientific notation.
Answer: 9.6 × 106
Move the decimal point 6 places.
5.Write 8,000,000 in scientific notation.
Answer: 8 × 106
Move the decimal point 6 places.
6.Write 7.8 × 104 as an ordinary number.
Answer: 78,000
7.Write 9,100,000 in scientific notation.
Answer: 9.1 × 106
Move the decimal point 6 places.
8.Write 3.8 × 105 as an ordinary number.
Answer: 380,000
9.Write 1.8 × 104 as an ordinary number.
Answer: 18,000
10.Write 8,200,000 in scientific notation.
Answer: 8.2 × 106
Move the decimal point 6 places.
11.Write 2.8 × 106 as an ordinary number.
Answer: 2,800,000
12.Write 46,000 in scientific notation.
Answer: 4.6 × 104
Move the decimal point 4 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.