8th Grade Scientific Notation Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the 8th Grade exponents & scientific notation worksheet.
8th Grade Scientific Notation Worksheet — Level 1 — Practice Set 3 — Answers
Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 87,000 in scientific notation.
Answer: 8.7 × 104
Move the decimal point 4 places.
2.Write 6 × 104 as an ordinary number.
Answer: 60,000
3.Write 810 in scientific notation.
Answer: 8.1 × 102
Move the decimal point 2 places.
4.Write 960 in scientific notation.
Answer: 9.6 × 102
Move the decimal point 2 places.
5.Write 2.5 × 106 as an ordinary number.
Answer: 2,500,000
6.Write 9.4 × 104 as an ordinary number.
Answer: 94,000
7.Write 31,000 in scientific notation.
Answer: 3.1 × 104
Move the decimal point 4 places.
8.Write 9,800 in scientific notation.
Answer: 9.8 × 103
Move the decimal point 3 places.
9.Write 7,700 in scientific notation.
Answer: 7.7 × 103
Move the decimal point 3 places.
10.Write 8,600 in scientific notation.
Answer: 8.6 × 103
Move the decimal point 3 places.
11.Write 2.2 × 105 as an ordinary number.
Answer: 220,000
12.Write 35,000 in scientific notation.
Answer: 3.5 × 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.