Year 10 Scientific Notation Worksheet — Level 1 — Answers
Answer sheet with worked solutions for the Year 10 indices & scientific notation worksheet.
Year 10 Scientific Notation Worksheet — Level 1 — Answers
Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 3.1 × 104 as an ordinary number.
Answer: 31,000
2.Write 9,000,000 in scientific notation.
Answer: 9 × 106
Move the decimal point 6 places.
3.Write 420 in scientific notation.
Answer: 4.2 × 102
Move the decimal point 2 places.
4.Write 3.9 × 106 as an ordinary number.
Answer: 3,900,000
5.Write 820,000 in scientific notation.
Answer: 8.2 × 105
Move the decimal point 5 places.
6.Write 9.3 × 106 as an ordinary number.
Answer: 9,300,000
7.Write 1.4 × 105 as an ordinary number.
Answer: 140,000
8.Write 2,000,000 in scientific notation.
Answer: 2 × 106
Move the decimal point 6 places.
9.Write 5.9 × 102 as an ordinary number.
Answer: 590
10.Write 910,000 in scientific notation.
Answer: 9.1 × 105
Move the decimal point 5 places.
11.Write 2.2 × 103 as an ordinary number.
Answer: 2,200
12.Write 6 × 105 as an ordinary number.
Answer: 600,000
Marking tips
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