0580/12 May/Jun 2021, Question 6: Order of Operations
Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Calculator · 3 marks
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The question, in short
Without a calculator, evaluate 9 + 5 × 7 − 4 ÷ 2 showing all working, then add one pair of brackets to make the same expression equal 96.
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Part (a) · 2 marks
Work out 9 + 5 × 7 − 4 ÷ 2 by hand, showing every step of the working.
- 15 × 7 = 35 and 4 ÷ 2 = 2
- 29 + 35 − 2 = 42
Answer42
Part (b) · 1 mark
Place a single pair of brackets in 9 + 5 × 7 − 4 ÷ 2 so the result becomes 96.
- 1(9 + 5) × 7 = 14 × 7 = 98
- 298 − 4 ÷ 2 = 98 − 2 = 96
Answer(9 + 5) × 7 − 4 ÷ 2 = 96
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Also searched as: 0580/12/M/J/21 · 0580_s21_qp_12 · 0580 s21 12 · question 6.
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