Keystones — Cornerstone
Five GCSE retrieval questions · 10 April 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 26 + 85
Answer: 26 + 85 = 111 -
2. Algebra
Collect like terms: 3x + 2y + 3x + 2y
Answer: 6x + 4y -
3. Geometry
Opposite = 8cm, hypotenuse = 16cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Calculate 50% of 48
Answer: 24 -
5. Statistics
Calculate the mean of: 27, 30, 16, 43, 23, 34, 12
Answer: 26.4