Keystones — Lintel
Five GCSE retrieval questions · 13 October 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 1⁄3 + 1⁄2 + 5⁄6
Answer: 5⁄3 -
2. Algebra
Solve: 3x + 10 = 2x - 3
Answer: x = 13 -
3. Geometry
Adjacent = 25cm, hypotenuse = 38cm. Find the angle
Answer: 48.9° -
4. Ratio
Simplify: 12:6:18
Answer: 2:1:3 -
5. Statistics
A bag has 5 red and 4 blue balls. What is the probability of picking a red ball?
Answer: 5⁄9