9th Grade Scientific Notation Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the 9th Grade exponents & scientific notation worksheet.
9th Grade Scientific Notation Worksheet — Level 2 — Answers
Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 0.000037 in scientific notation.
Answer: 3.7 × 10−5
Move the decimal point 5 places.
2.Write 0.013 in scientific notation.
Answer: 1.3 × 10−2
Move the decimal point 2 places.
3.Write 0.33 in scientific notation.
Answer: 3.3 × 10−1
Move the decimal point 1 places.
4.Write 490 in scientific notation.
Answer: 4.9 × 102
Move the decimal point 2 places.
5.Write 9.7 × 102 as an ordinary number.
Answer: 970
6.Write 6 × 102 as an ordinary number.
Answer: 600
7.Write 2,800,000 in scientific notation.
Answer: 2.8 × 106
Move the decimal point 6 places.
8.Write 8 in scientific notation.
Answer: 8 × 100
Move the decimal point 0 places.
9.Write 0.053 in scientific notation.
Answer: 5.3 × 10−2
Move the decimal point 2 places.
10.Write 0.000055 in scientific notation.
Answer: 5.5 × 10−5
Move the decimal point 5 places.
11.Write 2 in scientific notation.
Answer: 2.4 × 100
Move the decimal point 0 places.
12.Write 8.7 × 107 as an ordinary number.
Answer: 87,000,000
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.