Keystones — Lintel
Five GCSE retrieval questions · 29 May 2025 · mathsvault.uk/keystones
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1. Number
Add: 1⁄4 + 1⁄3
Answer: 7⁄12 -
2. Algebra
Solve: 6x + 11 = x - 4
Answer: x = 3 -
3. Geometry
Adjacent = 28cm, hypotenuse = 41cm. Find the angle
Answer: 46.9° -
4. Ratio
Simplify: 6:10:10
Answer: 3:5:5 -
5. Statistics
A bag has 7 red and 8 blue balls. What is the probability of picking a red ball?
Answer: 7⁄15