Keystones — Lintel
Five GCSE retrieval questions · 2 June 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 990 + 843
Answer: 1833 -
2. Algebra
Factorise: 7x² + 2x
Answer: x(7x + 2) -
3. Geometry
Opposite = 15cm, adjacent = 20cm. Calculate the angle
Answer: 36.9° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
A spinner has 4 red, 3 blue and 6 green sections. Probability of landing on red?
Answer: 4⁄13