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Year 11 Scientific Notation Worksheet — Level 1 — Answers

Answer sheet with worked solutions for the Year 11 indices & scientific notation worksheet.

Success TutoringWorksheetsAnswer sheetYear 11 · Mathematics · Indices & Scientific Notation

Year 11 Scientific Notation Worksheet — Level 1 — Answers

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

1.Write 7.7 × 106 as an ordinary number.

Answer: 7,700,000

2.Write 8.1 × 105 as an ordinary number.

Answer: 810,000

3.Write 500,000 in scientific notation.

Answer: 5 × 105

Move the decimal point 5 places.

4.Write 2.2 × 105 as an ordinary number.

Answer: 220,000

5.Write 8.5 × 102 as an ordinary number.

Answer: 850

6.Write 91,000 in scientific notation.

Answer: 9.1 × 104

Move the decimal point 4 places.

7.Write 8.6 × 103 as an ordinary number.

Answer: 8,600

8.Write 970 in scientific notation.

Answer: 9.7 × 102

Move the decimal point 2 places.

9.Write 220 in scientific notation.

Answer: 2.2 × 102

Move the decimal point 2 places.

10.Write 420,000 in scientific notation.

Answer: 4.2 × 105

Move the decimal point 5 places.

11.Write 9.1 × 104 as an ordinary number.

Answer: 91,000

12.Write 89,000 in scientific notation.

Answer: 8.9 × 104

Move the decimal point 4 places.

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