Keystones — Lintel
Five GCSE retrieval questions · 6 February 2025 · mathsvault.uk/keystones
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1. Number
Add: 2⁄3 + 3⁄4
Answer: 17⁄12 -
2. Algebra
Solve: 2x = 30
Answer: x = 15 -
3. Geometry
Adjacent = 28cm, hypotenuse = 48cm. Find the angle
Answer: 54.3° -
4. Ratio
Simplify: 24:12:16
Answer: 6:3:4 -
5. Statistics
A bag has 5 red and 8 blue balls. What is the probability of picking a red ball?
Answer: 5⁄13