Keystones — Cornerstone
Five GCSE retrieval questions · 30 October 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 60 + 64
Answer: 60 + 64 = 124 -
2. Algebra
Collect like terms: 5x + 3y + 3x + 3y
Answer: 8x + 6y -
3. Geometry
Opposite = 8cm, hypotenuse = 16cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify: 15:9:15
Answer: 5:3:5 -
5. Statistics
A bag has 7 red and 3 blue balls. What is the probability of picking a red ball?
Answer: 7⁄10