Year 11 Scientific Notation Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 11 indices & scientific notation worksheet.
Year 11 Scientific Notation Worksheet — Level 1 — Practice Set 3 — Answers
Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 7.6 × 105 as an ordinary number.
Answer: 760,000
2.Write 53,000 in scientific notation.
Answer: 5.3 × 104
Move the decimal point 4 places.
3.Write 6.3 × 105 as an ordinary number.
Answer: 630,000
4.Write 5.7 × 105 as an ordinary number.
Answer: 570,000
5.Write 7.2 × 104 as an ordinary number.
Answer: 72,000
6.Write 380 in scientific notation.
Answer: 3.8 × 102
Move the decimal point 2 places.
7.Write 2.3 × 104 as an ordinary number.
Answer: 23,000
8.Write 7 × 104 as an ordinary number.
Answer: 70,000
9.Write 8,500,000 in scientific notation.
Answer: 8.5 × 106
Move the decimal point 6 places.
10.Write 350,000 in scientific notation.
Answer: 3.5 × 105
Move the decimal point 5 places.
11.Write 8 × 105 as an ordinary number.
Answer: 800,000
12.Write 7,400 in scientific notation.
Answer: 7.4 × 103
Move the decimal point 3 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.