Year 10 Scientific Notation Worksheet — Level 2 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 10 indices & scientific notation worksheet.
Success TutoringWorksheetsAnswer sheetYear 10 · Mathematics · Indices & Scientific NotationYear 10 Scientific Notation Worksheet — Level 2 — Practice Set 2 — Answers
Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 5.4 × 10−2 as an ordinary number.
Answer: 0.054
2.Write 4.5 × 101 as an ordinary number.
Answer: 45
3.Write 9.2 × 100 as an ordinary number.
Answer: 9
4.Write 0.0069 in scientific notation.
Answer: 6.9 × 10−3
Move the decimal point 3 places.
5.Write 73,000,000 in scientific notation.
Answer: 7.3 × 107
Move the decimal point 7 places.
6.Write 110,000,000 in scientific notation.
Answer: 1.1 × 108
Move the decimal point 8 places.
7.Write 0.74 in scientific notation.
Answer: 7.4 × 10−1
Move the decimal point 1 places.
8.Write 0.00068 in scientific notation.
Answer: 6.8 × 10−4
Move the decimal point 4 places.
9.Write 0.000033 in scientific notation.
Answer: 3.3 × 10−5
Move the decimal point 5 places.
10.Write 270,000,000 in scientific notation.
Answer: 2.7 × 108
Move the decimal point 8 places.
11.Write 5.1 × 105 as an ordinary number.
Answer: 510,000
12.Write 3.9 × 10−4 as an ordinary number.
Answer: 0.00039
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