Year 9 Scientific Notation Worksheet — Level 1 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 9 indices & scientific notation worksheet.
Success TutoringWorksheetsAnswer sheetYear 9 · Mathematics · Indices & Scientific NotationYear 9 Scientific Notation Worksheet — Level 1 — Practice Set 2 — Answers
Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 2 × 103 as an ordinary number.
Answer: 2,000
2.Write 5.6 × 102 as an ordinary number.
Answer: 560
3.Write 7,800 in scientific notation.
Answer: 7.8 × 103
Move the decimal point 3 places.
4.Write 2.7 × 103 as an ordinary number.
Answer: 2,700
5.Write 6.1 × 102 as an ordinary number.
Answer: 610
6.Write 260 in scientific notation.
Answer: 2.6 × 102
Move the decimal point 2 places.
7.Write 3 × 105 as an ordinary number.
Answer: 300,000
8.Write 2.1 × 102 as an ordinary number.
Answer: 210
9.Write 9 × 103 as an ordinary number.
Answer: 9,000
10.Write 6,100 in scientific notation.
Answer: 6.1 × 103
Move the decimal point 3 places.
11.Write 150 in scientific notation.
Answer: 1.5 × 102
Move the decimal point 2 places.
12.Write 2,000 in scientific notation.
Answer: 2 × 103
Move the decimal point 3 places.
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