Year 9 Scientific Notation Worksheet — Level 1 — Practice Set 4 — 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 4 — Answers
Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 540 in scientific notation.
Answer: 5.4 × 102
Move the decimal point 2 places.
2.Write 380 in scientific notation.
Answer: 3.8 × 102
Move the decimal point 2 places.
3.Write 3.5 × 102 as an ordinary number.
Answer: 350
4.Write 37,000 in scientific notation.
Answer: 3.7 × 104
Move the decimal point 4 places.
5.Write 9.5 × 106 as an ordinary number.
Answer: 9,500,000
6.Write 8 × 105 as an ordinary number.
Answer: 800,000
7.Write 2.5 × 104 as an ordinary number.
Answer: 25,000
8.Write 8.7 × 105 as an ordinary number.
Answer: 870,000
9.Write 980 in scientific notation.
Answer: 9.8 × 102
Move the decimal point 2 places.
10.Write 4.7 × 106 as an ordinary number.
Answer: 4,700,000
11.Write 8.4 × 106 as an ordinary number.
Answer: 8,400,000
12.Write 31,000 in scientific notation.
Answer: 3.1 × 104
Move the decimal point 4 places.
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