Keystones — Cornerstone
Five GCSE retrieval questions · 30 November 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 279 + 919
Answer: 279 + 919 = 1198 -
2. Algebra
Collect like terms: 6x + 2y + 8x + 8y
Answer: 14x + 10y -
3. Geometry
Opposite = 12cm, hypotenuse = 24cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Calculate 10% of 158
Answer: 15.8 -
5. Statistics
Calculate the range of: 47, 22, 38, 57, 52, 49
Answer: 35