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Year 10 Scientific Notation Worksheet — Level 1 — Answers

Answer sheet with worked solutions for the Year 10 indices & scientific notation worksheet.

Success TutoringWorksheetsAnswer sheetYear 10 · Mathematics · Indices & Scientific Notation

Year 10 Scientific Notation Worksheet — Level 1 — Answers

Scientific notation is a × 10ⁿ where 1 ≤ a < 10.

1.Write 3.1 × 104 as an ordinary number.

Answer: 31,000

2.Write 9,000,000 in scientific notation.

Answer: 9 × 106

Move the decimal point 6 places.

3.Write 420 in scientific notation.

Answer: 4.2 × 102

Move the decimal point 2 places.

4.Write 3.9 × 106 as an ordinary number.

Answer: 3,900,000

5.Write 820,000 in scientific notation.

Answer: 8.2 × 105

Move the decimal point 5 places.

6.Write 9.3 × 106 as an ordinary number.

Answer: 9,300,000

7.Write 1.4 × 105 as an ordinary number.

Answer: 140,000

8.Write 2,000,000 in scientific notation.

Answer: 2 × 106

Move the decimal point 6 places.

9.Write 5.9 × 102 as an ordinary number.

Answer: 590

10.Write 910,000 in scientific notation.

Answer: 9.1 × 105

Move the decimal point 5 places.

11.Write 2.2 × 103 as an ordinary number.

Answer: 2,200

12.Write 6 × 105 as an ordinary number.

Answer: 600,000

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