10th Grade Scientific Notation Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the 10th Grade exponents & scientific notation worksheet.
10th Grade Scientific Notation Worksheet — Level 1 — Practice Set 3 — Answers
Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 7,700,000 in scientific notation.
Answer: 7.7 × 106
Move the decimal point 6 places.
2.Write 7.4 × 102 as an ordinary number.
Answer: 740
3.Write 95,000 in scientific notation.
Answer: 9.5 × 104
Move the decimal point 4 places.
4.Write 7,100 in scientific notation.
Answer: 7.1 × 103
Move the decimal point 3 places.
5.Write 240,000 in scientific notation.
Answer: 2.4 × 105
Move the decimal point 5 places.
6.Write 7.5 × 103 as an ordinary number.
Answer: 7,500
7.Write 8,000,000 in scientific notation.
Answer: 8 × 106
Move the decimal point 6 places.
8.Write 6.4 × 103 as an ordinary number.
Answer: 6,400
9.Write 4.7 × 105 as an ordinary number.
Answer: 470,000
10.Write 2.4 × 105 as an ordinary number.
Answer: 240,000
11.Write 4.6 × 103 as an ordinary number.
Answer: 4,600
12.Write 2.6 × 105 as an ordinary number.
Answer: 260,000
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.