Keystones — Lintel
Five GCSE retrieval questions · 18 July 2025 · mathsvault.uk/keystones
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1. Number
Three lengths are 3.87m, 1.97m and 3.99m. What is their total length?
Answer: 9.83m -
2. Algebra
Solve: 8x = 48
Answer: x = 6 -
3. Geometry
Adjacent = 24cm, hypotenuse = 37cm. Find the angle
Answer: 49.6° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
A bag has 7 red and 8 blue balls. What is the probability of picking a red ball?
Answer: 7⁄15