Year 10 Scientific Notation Worksheet — Level 1 — Practice Set 3 — 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 1 — Practice Set 3 — Answers
Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 68,000 in scientific notation.
Answer: 6.8 × 104
Move the decimal point 4 places.
2.Write 6.8 × 105 as an ordinary number.
Answer: 680,000
3.Write 6.9 × 104 as an ordinary number.
Answer: 69,000
4.Write 7.6 × 103 as an ordinary number.
Answer: 7,600
5.Write 8,600 in scientific notation.
Answer: 8.6 × 103
Move the decimal point 3 places.
6.Write 890 in scientific notation.
Answer: 8.9 × 102
Move the decimal point 2 places.
7.Write 7,400 in scientific notation.
Answer: 7.4 × 103
Move the decimal point 3 places.
8.Write 5,300,000 in scientific notation.
Answer: 5.3 × 106
Move the decimal point 6 places.
9.Write 2.9 × 105 as an ordinary number.
Answer: 290,000
10.Write 9,100,000 in scientific notation.
Answer: 9.1 × 106
Move the decimal point 6 places.
11.Write 78,000 in scientific notation.
Answer: 7.8 × 104
Move the decimal point 4 places.
12.Write 1.1 × 104 as an ordinary number.
Answer: 11,000
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