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4024/11 May/Jun 2024, Question 3: Adding, Subtracting, Multiplying and Dividing Decimals

Cambridge O Level Mathematics 4024 · Paper 11 (Non-calculator) · Non-calculator · 3 marks

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The question, in short

Work out three short arithmetic values: a decimal product, a percentage of a number, and a subtraction involving a negative number.

Summarised in our own words. Use the official paper for the exact wording and any diagrams.

Part (a) · 1 mark

Multiply 0.3 by 0.02.

  1. 13 × 2 = 6, with 3 decimal places: 0.3 × 0.02 = 0.006

Answer0.006

Part (b) · 1 mark

Find 15% of 40.

  1. 115% of 40 = 0.15 × 40 = 6

Answer6

Part (c) · 1 mark

Work out 7 − (−25).

  1. 17 − (−25) = 7 + 25 = 32

Answer32

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