Keystones — Capstone
Five GCSE retrieval questions · 9 April 2025 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 114. What are the numbers?
Answer: 37, 38, and 39 -
2. Algebra
Factorise fully: 21x² + 18x
Answer: 3x(7x + 6) -
3. Geometry
Adjacent = 20cm, hypotenuse = 36cm. Find the angle
Answer: 56.3° -
4. Ratio
Calculate 47.6% of 388
Answer: 184.69 -
5. Statistics
A spinner has 3 red, 3 blue and 2 green sections. Probability of landing on red?
Answer: 3⁄8