Keystones — Lintel
Five GCSE retrieval questions · 17 July 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 994 + 635
Answer: 1629 -
2. Algebra
For y = x³ + 8, calculate y when x = 3
Answer: y = 35 -
3. Geometry
Find c if a = 18cm and b = 10cm in a right triangle
Answer: 20.6cm -
4. Ratio
Calculate 48.7% of 360
Answer: 175.32 -
5. Statistics
Calculate the mean of: 38, 28, 5, 45, 19, 40, 27, 37
Answer: 29.9