Keystones — Capstone
Five GCSE retrieval questions · 8 October 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 138. What are the numbers?
Answer: 45, 46, and 47 -
2. Algebra
Expand: 3(3x - 2)
Answer: 9x - 6 -
3. Geometry
A right triangle has hypotenuse 13cm and one side 5cm. Find its area
Answer: 30cm² -
4. Ratio
Calculate 24.7% of 732
Answer: 180.8 -
5. Statistics
A spinner has 2 red, 4 blue and 3 green sections. Probability of landing on red?
Answer: 2⁄9