Keystones — Cornerstone
Five GCSE retrieval questions · 27 May 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 45 + 36
Answer: 45 + 36 = 81 -
2. Algebra
Collect like terms: 8x + 2y + 5x + 6y
Answer: 13x + 8y -
3. Geometry
Opposite = 5cm, hypotenuse = 10cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify: 8:4:10
Answer: 4:2:5 -
5. Statistics
Calculate the mean of: 42, 35, 46, 27, 32, 21, 30, 36
Answer: 33.6