Keystones — Capstone
Five GCSE retrieval questions · 17 April 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 1⁄2 + 3⁄6 + 2⁄5
Answer: 7⁄5 -
2. Algebra
Factorise fully: 20x² + 28x
Answer: 4x(5x + 7) -
3. Geometry
Adjacent = 21cm, hypotenuse = 36cm. Find the angle
Answer: 54.3° -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
A spinner has 2 red, 4 blue and 4 green sections. Probability of landing on red?
Answer: 1⁄5