Keystones — Lintel
Five GCSE retrieval questions · 9 December 2023 · mathsvault.uk/keystones
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1. Number
Find the total of 254, 219, and 109
Answer: 582 -
2. Algebra
Factorise fully: 14x² + 12x
Answer: 2x(7x + 6) -
3. Geometry
Opposite = 20cm, adjacent = 14cm. Calculate the angle
Answer: 55° -
4. Ratio
Simplify: 20:8:24
Answer: 5:2:6 -
5. Statistics
Calculate the mean of: 25, 32, 43, 21, 49, 47
Answer: 36.2