Keystones — Capstone
Five GCSE retrieval questions · 7 May 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 90. What are the numbers?
Answer: 29, 30, and 31 -
2. Algebra
Factorise fully: 20x² + 8x
Answer: 4x(5x + 2) -
3. Geometry
Adjacent = 22cm, hypotenuse = 38cm. Find the angle
Answer: 54.6° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
A spinner has 5 red, 5 blue and 3 green sections. Probability of landing on red?
Answer: 5⁄13