Keystones — Cornerstone
Five GCSE retrieval questions · 19 March 2026 · mathsvault.uk/keystones
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1. Number
Calculate: 434 + 899
Answer: 434 + 899 = 1333 -
2. Algebra
Collect like terms: 8x + 5y + 3x + 5y
Answer: 11x + 10y -
3. Geometry
Opposite = 11cm, hypotenuse = 22cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 4:14
Answer: 2:7 -
5. Statistics
Calculate the mean of: 22, 11, 44, 36, 13, 39, 17, 8
Answer: 23.8