Year 9 Scientific Notation Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the Year 9 indices & scientific notation worksheet.
Year 9 · Mathematics · Indices & Scientific Notation
Year 9 Scientific Notation Worksheet — Level 2 — Answers
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Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 7.1 × 108 as an ordinary number.
Answer: 710,000,000
2.Write 4.7 × 108 as an ordinary number.
Answer: 470,000,000
3.Write 2,200,000 in scientific notation.
Answer: 2.2 × 106
Move the decimal point 6 places.
4.Write 690,000 in scientific notation.
Answer: 6.9 × 105
Move the decimal point 5 places.
5.Write 6.1 × 108 as an ordinary number.
Answer: 610,000,000
6.Write 2.9 × 10−5 as an ordinary number.
Answer: 0.000029
7.Write 950,000,000 in scientific notation.
Answer: 9.5 × 108
Move the decimal point 8 places.
8.Write 0.00028 in scientific notation.
Answer: 2.8 × 10−4
Move the decimal point 4 places.
9.Write 170,000,000 in scientific notation.
Answer: 1.7 × 108
Move the decimal point 8 places.
10.Write 6,100,000 in scientific notation.
Answer: 6.1 × 106
Move the decimal point 6 places.
11.Write 5 in scientific notation.
Answer: 5.4 × 100
Move the decimal point 0 places.
12.Write 21 in scientific notation.
Answer: 2.1 × 101
Move the decimal point 1 places.
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