Keystones — Cornerstone
Five GCSE retrieval questions · 29 August 2023 · mathsvault.uk/keystones
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1. Number
What is 2 × 5² × 7?
Answer: 350 -
2. Algebra
Simplify: 3x + 4x
Answer: 7x -
3. Geometry
Opposite = 6cm, hypotenuse = 8.5cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify: 4:4:8
Answer: 1:1:2 -
5. Statistics
Find the mean of: 17, 2, 8
Answer: 9