8th Grade Scientific Notation Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 8th Grade exponents & scientific notation worksheet.
8th Grade Scientific Notation Worksheet — Level 1 — Practice Set 4 — Answers
Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 5.4 × 103 as an ordinary number.
Answer: 5,400
2.Write 230 in scientific notation.
Answer: 2.3 × 102
Move the decimal point 2 places.
3.Write 1.3 × 103 as an ordinary number.
Answer: 1,300
4.Write 7.6 × 105 as an ordinary number.
Answer: 760,000
5.Write 3.9 × 105 as an ordinary number.
Answer: 390,000
6.Write 9,700 in scientific notation.
Answer: 9.7 × 103
Move the decimal point 3 places.
7.Write 5,300 in scientific notation.
Answer: 5.3 × 103
Move the decimal point 3 places.
8.Write 5.3 × 106 as an ordinary number.
Answer: 5,300,000
9.Write 730,000 in scientific notation.
Answer: 7.3 × 105
Move the decimal point 5 places.
10.Write 7.4 × 103 as an ordinary number.
Answer: 7,400
11.Write 6.4 × 105 as an ordinary number.
Answer: 640,000
12.Write 890,000 in scientific notation.
Answer: 8.9 × 105
Move the decimal point 5 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.