Keystones — Lintel
Five GCSE retrieval questions · 26 June 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 856 + 565
Answer: 856 + 565 = 1421 -
2. Algebra
Solve: x⁄2 = 11.5
Answer: x = 23 -
3. Geometry
Opposite = 20cm, adjacent = 8cm. Calculate the angle
Answer: 68.2° -
4. Ratio
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics
A bag has 8 red and 5 blue balls. What is the probability of picking a red ball?
Answer: 8⁄13