10th Grade Scientific Notation Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the 10th Grade exponents & scientific notation worksheet.
10th Grade Scientific Notation Worksheet — Level 2 — Answers
Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 9.6 × 10−3 as an ordinary number.
Answer: 0.0096
2.Write 9.5 × 102 as an ordinary number.
Answer: 950
3.Write 8.4 × 10−4 as an ordinary number.
Answer: 0.00084
4.Write 610,000,000 in scientific notation.
Answer: 6.1 × 108
Move the decimal point 8 places.
5.Write 0.029 in scientific notation.
Answer: 2.9 × 10−2
Move the decimal point 2 places.
6.Write 7.8 × 10−3 as an ordinary number.
Answer: 0.0078
7.Write 70,000,000 in scientific notation.
Answer: 7 × 107
Move the decimal point 7 places.
8.Write 18,000,000 in scientific notation.
Answer: 1.8 × 107
Move the decimal point 7 places.
9.Write 6.3 × 10−2 as an ordinary number.
Answer: 0.063
10.Write 0.20 in scientific notation.
Answer: 2 × 10−1
Move the decimal point 1 places.
11.Write 31,000,000 in scientific notation.
Answer: 3.1 × 107
Move the decimal point 7 places.
12.Write 3,200 in scientific notation.
Answer: 3.2 × 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.