Keystones — Lintel
Five GCSE retrieval questions · 10 March 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 420 + 780
Answer: 420 + 780 = 1200 -
2. Algebra
Simplify: 10x - 5x + 6y - 5y
Answer: 5x + y -
3. Geometry
Opposite = 19cm, adjacent = 10cm. Calculate the angle
Answer: 62.2° -
4. Ratio
Simplify the ratio 8m:800cm
Answer: 1:100 -
5. Statistics
Calculate the mean of: 43, 10, 9, 24, 10, 27
Answer: 20.5