Keystones — Cornerstone
Five GCSE retrieval questions · 16 November 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 2 × 3²
Answer: 18 -
2. Algebra
Collect like terms: 6x + 2y + 8x + 3y
Answer: 14x + 5y -
3. Geometry
Opposite = 8cm, hypotenuse = 16cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Simplify the ratio 35:20
Answer: 7:4 -
5. Statistics
Calculate the mean of: 46, 40, 27, 39, 18, 46, 18
Answer: 33.4