Year 9 Scientific Notation Worksheet — Level 1 — 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 1 — Answers
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Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 7 × 105 as an ordinary number.
Answer: 700,000
2.Write 37,000 in scientific notation.
Answer: 3.7 × 104
Move the decimal point 4 places.
3.Write 3.7 × 102 as an ordinary number.
Answer: 370
4.Write 350,000 in scientific notation.
Answer: 3.5 × 105
Move the decimal point 5 places.
5.Write 7,200 in scientific notation.
Answer: 7.2 × 103
Move the decimal point 3 places.
6.Write 9.4 × 105 as an ordinary number.
Answer: 940,000
7.Write 5.7 × 103 as an ordinary number.
Answer: 5,700
8.Write 6.2 × 102 as an ordinary number.
Answer: 620
9.Write 66,000 in scientific notation.
Answer: 6.6 × 104
Move the decimal point 4 places.
10.Write 890 in scientific notation.
Answer: 8.9 × 102
Move the decimal point 2 places.
11.Write 3.7 × 103 as an ordinary number.
Answer: 3,700
12.Write 7,300,000 in scientific notation.
Answer: 7.3 × 106
Move the decimal point 6 places.
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