Keystones — Lintel
Five GCSE retrieval questions · 6 November 2021 · mathsvault.uk/keystones
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1. Number
Find the total of 254, 196, and 108
Answer: 558 -
2. Algebra
Factorise fully: 20x² + 24x
Answer: 4x(5x + 6) -
3. Geometry
Opposite = 12cm, adjacent = 15cm. Calculate the angle
Answer: 38.7° -
4. Ratio
Simplify: 24:20:12
Answer: 6:5:3 -
5. Statistics
A spinner has 2 red, 3 blue and 6 green sections. Probability of landing on red?
Answer: 2⁄11