Keystones — Capstone
Five GCSE retrieval questions · 11 May 2023 · mathsvault.uk/keystones
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1. Number
Simplify: y4 × y5 × y5
Answer: y14 -
2. Algebra
Factorise fully: 9x² + 21x
Answer: 3x(3x + 7) -
3. Geometry
Adjacent = 28cm, hypotenuse = 35cm. Find the angle
Answer: 36.9° -
4. Ratio
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics
A spinner has 4 red, 5 blue and 6 green sections. Probability of landing on red?
Answer: 4⁄15