Keystones — Cornerstone
Five GCSE retrieval questions · 25 April 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 77 + 74
Answer: 77 + 74 = 151 -
2. Algebra
Collect like terms: 5x + 4y + 2x + 8y
Answer: 7x + 12y -
3. Geometry
Opposite = 12cm, hypotenuse = 17cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 20:12
Answer: 5:3 -
5. Statistics
Find the range of: 18, 44, 17, 42, 18
Answer: 27