0580/32 May/Jun 2026, Question 4: Cube Roots
Cambridge IGCSE Mathematics 0580 · Paper 32 (Core) · Calculator · 2 marks
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The question, in short
Calculate two numerical expressions: the cube root of 1.728, and 18 divided by the result of 0.2² − 0.36.
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Part (a) · 1 mark
Find the cube root of 1.728.
- 11.2 × 1.2 × 1.2 = 1.728
- 2∛1.728 = 1.2
Answer1.2
Part (b) · 1 mark
Work out 18 divided by (0.2² − 0.36).
- 10.2² − 0.36 = 0.04 − 0.36 = −0.32
- 218 ÷ (−0.32) = −56.25
Answer−56.25
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