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 80,000 in scientific notation.
Answer: 8 × 104
Move the decimal point 4 places.
2.Write 5.7 × 103 as an ordinary number.
Answer: 5,700
3.Write 3.6 × 102 as an ordinary number.
Answer: 360
4.Write 23,000 in scientific notation.
Answer: 2.3 × 104
Move the decimal point 4 places.
5.Write 8,700,000 in scientific notation.
Answer: 8.7 × 106
Move the decimal point 6 places.
6.Write 2,200,000 in scientific notation.
Answer: 2.2 × 106
Move the decimal point 6 places.
7.Write 270 in scientific notation.
Answer: 2.7 × 102
Move the decimal point 2 places.
8.Write 6,900,000 in scientific notation.
Answer: 6.9 × 106
Move the decimal point 6 places.
9.Write 110 in scientific notation.
Answer: 1.1 × 102
Move the decimal point 2 places.
10.Write 7.2 × 105 as an ordinary number.
Answer: 720,000
11.Write 3,100,000 in scientific notation.
Answer: 3.1 × 106
Move the decimal point 6 places.
12.Write 5,900 in scientific notation.
Answer: 5.9 × 103
Move the decimal point 3 places.
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