10th Grade Scientific Notation Worksheet — Level 2 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 10th Grade exponents & scientific notation worksheet.
10th Grade Scientific Notation Worksheet — Level 2 — Practice Set 4 — Answers
Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 630,000 in scientific notation.
Answer: 6.3 × 105
Move the decimal point 5 places.
2.Write 8.7 × 10−1 as an ordinary number.
Answer: 0.87
3.Write 0.092 in scientific notation.
Answer: 9.2 × 10−2
Move the decimal point 2 places.
4.Write 6.5 × 10−3 as an ordinary number.
Answer: 0.0065
5.Write 3 × 10−1 as an ordinary number.
Answer: 0.30
6.Write 510 in scientific notation.
Answer: 5.1 × 102
Move the decimal point 2 places.
7.Write 6.6 × 101 as an ordinary number.
Answer: 66
8.Write 4.2 × 104 as an ordinary number.
Answer: 42,000
9.Write 0.0082 in scientific notation.
Answer: 8.2 × 10−3
Move the decimal point 3 places.
10.Write 23,000,000 in scientific notation.
Answer: 2.3 × 107
Move the decimal point 7 places.
11.Write 3.4 × 102 as an ordinary number.
Answer: 340
12.Write 6 × 104 as an ordinary number.
Answer: 60,000
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.