Keystones — Cornerstone
Five GCSE retrieval questions · 12 July 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 95 + ? = 144
Answer: 49 -
2. Algebra
Factorise: 2x² + 4x
Answer: 2x(x + 2) -
3. Geometry
Opposite = 7cm, hypotenuse = 8.cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 35:40
Answer: 7:8 -
5. Statistics
Calculate the range of: 38, 29, 49, 74, 29, 88
Answer: 59