Keystones — Capstone
Five GCSE retrieval questions · 24 December 2021 · mathsvault.uk/keystones
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1. Number
If x2 = 25, what is x?
Answer: 5 -
2. Algebra
Solve: x⁄7 = 4.8571428571429
Answer: x = 34 -
3. Geometry
Find c if a = 20cm and b = 11cm in a right triangle
Answer: 22.8cm -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
A spinner has 4 red, 4 blue and 5 green sections. Probability of landing on red?
Answer: 4⁄13