Keystones — Cornerstone
Five GCSE retrieval questions · 13 July 2025 · mathsvault.uk/keystones
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1. Number
What is the missing number: 54 + ? = 184
Answer: 130 -
2. Algebra
Collect like terms: 8x + 3y + 5x + 5y
Answer: 13x + 8y -
3. Geometry
Opposite = 6cm, hypotenuse = 12cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
Find 72% of 326
Answer: 234.72 -
5. Statistics
Calculate the mean of: 11, 9, 41, 37, 40, 45, 30, 19
Answer: 29