Keystones — Lintel
Five GCSE retrieval questions · 18 April 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 572 + 472
Answer: 572 + 472 = 1044 -
2. Algebra
Simplify: 8x - 6x + 4y - 2y
Answer: 2x + 2y -
3. Geometry
Opposite = 19cm, adjacent = 11cm. Calculate the angle
Answer: 59.9° -
4. Ratio
Simplify: 18:15:9
Answer: 6:5:3 -
5. Statistics
A bag has 3 red and 6 blue balls. What is the probability of picking a red ball?
Answer: 1⁄3