Year 10 Scientific Notation Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the Year 10 indices & scientific notation worksheet.
Year 10 · Mathematics · Indices & Scientific Notation
Year 10 Scientific Notation Worksheet — Level 2 — Answers
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Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 0.048 in scientific notation.
Answer: 4.8 × 10−2
Move the decimal point 2 places.
2.Write 8.7 × 10−1 as an ordinary number.
Answer: 0.87
3.Write 3.9 × 101 as an ordinary number.
Answer: 39
4.Write 0.0053 in scientific notation.
Answer: 5.3 × 10−3
Move the decimal point 3 places.
5.Write 0.40 in scientific notation.
Answer: 4 × 10−1
Move the decimal point 1 places.
6.Write 2.5 × 10−4 as an ordinary number.
Answer: 0.00025
7.Write 20,000 in scientific notation.
Answer: 2 × 104
Move the decimal point 4 places.
8.Write 7.1 × 108 as an ordinary number.
Answer: 710,000,000
9.Write 4.9 × 102 as an ordinary number.
Answer: 490
10.Write 0.000029 in scientific notation.
Answer: 2.9 × 10−5
Move the decimal point 5 places.
11.Write 0.098 in scientific notation.
Answer: 9.8 × 10−2
Move the decimal point 2 places.
12.Write 2.8 × 100 as an ordinary number.
Answer: 3
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