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0580/12 Feb/Mar 2022, Question 9: Order of Operations

Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Calculator · 1 mark

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The question, in short

Insert one pair of brackets into 150 − 17 − 5 × 2² so that the result equals 33.

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

Solution · 1 mark

  1. 1(5 × 2)² = 10² = 100
  2. 2150 − 17 − 100 = 33
  3. 3150 − 17 − (5 × 2)² = 33

Answer150 − 17 − (5 × 2)² = 33

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