Keystones — Lintel
Five GCSE retrieval questions · 28 July 2022 · mathsvault.uk/keystones
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1. Number
Simplify: y3 × y2 × y4
Answer: y9 -
2. Algebra
Solve: 9x = 99
Answer: x = 11 -
3. Geometry
Adjacent = 20cm, hypotenuse = 31cm. Find the angle
Answer: 49.8° -
4. Ratio
Simplify: 18:9:15
Answer: 6:3:5 -
5. Statistics
A spinner has 3 red, 4 blue and 6 green sections. Probability of landing on red?
Answer: 3⁄13