Year 9 Scientific Notation Worksheet — Level 2 — Practice Set 3 — 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 2 — Practice Set 3 — Answers
Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 7.3 × 103 as an ordinary number.
Answer: 7,300
2.Write 4.8 × 100 as an ordinary number.
Answer: 5
3.Write 9 in scientific notation.
Answer: 9.4 × 100
Move the decimal point 0 places.
4.Write 1.3 × 10−2 as an ordinary number.
Answer: 0.013
5.Write 0.00045 in scientific notation.
Answer: 4.5 × 10−4
Move the decimal point 4 places.
6.Write 0.67 in scientific notation.
Answer: 6.7 × 10−1
Move the decimal point 1 places.
7.Write 6,500,000 in scientific notation.
Answer: 6.5 × 106
Move the decimal point 6 places.
8.Write 4.8 × 10−2 as an ordinary number.
Answer: 0.048
9.Write 3.8 × 10−5 as an ordinary number.
Answer: 0.000038
10.Write 0.0041 in scientific notation.
Answer: 4.1 × 10−3
Move the decimal point 3 places.
11.Write 9.4 × 10−3 as an ordinary number.
Answer: 0.0094
12.Write 7 × 108 as an ordinary number.
Answer: 700,000,000
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