Year 9 Scientific Notation Worksheet — Level 1 — 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 1 — Practice Set 3 — Answers
Scientific notation is a × 10ⁿ where 1 ≤ a < 10.
1.Write 770,000 in scientific notation.
Answer: 7.7 × 105
Move the decimal point 5 places.
2.Write 1.7 × 104 as an ordinary number.
Answer: 17,000
3.Write 8.7 × 104 as an ordinary number.
Answer: 87,000
4.Write 260,000 in scientific notation.
Answer: 2.6 × 105
Move the decimal point 5 places.
5.Write 1.1 × 104 as an ordinary number.
Answer: 11,000
6.Write 9.5 × 106 as an ordinary number.
Answer: 9,500,000
7.Write 11,000 in scientific notation.
Answer: 1.1 × 104
Move the decimal point 4 places.
8.Write 16,000 in scientific notation.
Answer: 1.6 × 104
Move the decimal point 4 places.
9.Write 7.4 × 104 as an ordinary number.
Answer: 74,000
10.Write 3.7 × 103 as an ordinary number.
Answer: 3,700
11.Write 7,300 in scientific notation.
Answer: 7.3 × 103
Move the decimal point 3 places.
12.Write 2.5 × 102 as an ordinary number.
Answer: 250
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