Keystones — Cornerstone
Five GCSE retrieval questions · 30 March 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 5⁄10 + 2⁄10
Answer: 7⁄10 -
2. Algebra
Factorise: 5x² + 4x
Answer: x(5x + 4) -
3. Geometry
Opposite = 11cm, hypotenuse = 22cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 20:15
Answer: 4:3 -
5. Statistics
Calculate the range of: 49, 124, 54, 126, 87, 84
Answer: 77