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4024/12 Oct/Nov 2022, Question 2: Order of Operations

Cambridge O Level Mathematics 4024 · Paper 12 (Non-calculator) · Non-calculator · 2 marks

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The question, in short

Insert a pair of brackets so the calculation 4 + 4 × 4 − 4 = 4 is correct, then evaluate −6 × (−3 + 7).

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

Part (a) · 1 mark

Place one pair of brackets in 4 + 4 × 4 − 4 so the result equals 4.

  1. 14 + 4 × (4 − 4) = 4 + 4 × 0 = 4
  2. 24 + 4 × (4 − 4) = 4

Answer4 + 4 × (4 − 4) = 4

Part (b) · 1 mark

Calculate the value of −6 × (−3 + 7).

  1. 1−3 + 7 = 4
  2. 2−6 × 4 = −24

Answer−24

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Also searched as: 4024/12/O/N/22 · 4024_w22_qp_12 · 4024 w22 12 · question 2.
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