Keystones — Lintel
Five GCSE retrieval questions · 2 August 2021 · mathsvault.uk/keystones
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1. Number
Add: 1⁄8 + 1⁄4
Answer: 3⁄8 -
2. Algebra
Factorise fully: 25x² + 30x
Answer: 5x(5x + 6) -
3. Geometry
Calculate the area of a circle with diameter 13cm
Answer: 132.73cm² -
4. Ratio
Simplify: 4:6:4
Answer: 2:3:2 -
5. Statistics
Find the range of: -1, 38, 35, -10, 22
Answer: 48