0580/11 May/Jun 2024, Question 6: Order of Operations
Cambridge IGCSE Mathematics 0580 · Paper 11 (Core) · Calculator · 2 marks
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The question, in short
Evaluate the expression 28 − 16 ÷ 2, then find the reciprocal of the fraction 4/5.
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Part (a) · 1 mark
Work out the value of 28 − 16 ÷ 2, using the correct order of operations.
- 1Divide first: 16 ÷ 2 = 8
- 228 − 8 = 20
Answer20
Part (b) · 1 mark
Find the reciprocal of 4/5.
- 1Reciprocal of 4/5 = 5/4 = 1.25
Answer1.25 or 1 1/4
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