Keystones — Lintel
Five GCSE retrieval questions · 13 May 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 858 + 808
Answer: 858 + 808 = 1666 -
2. Algebra
Simplify: 12x - 11x + 10y - 3y
Answer: x + 7y -
3. Geometry
Find c if a = 13cm and b = 22cm in a right triangle
Answer: 25.6cm -
4. Ratio
Simplify: 15:9:6
Answer: 5:3:2 -
5. Statistics
Find the range of: 24, 43, 10, -17, 44
Answer: 61