Keystones — Cornerstone
Five GCSE retrieval questions · 30 January 2025 · mathsvault.uk/keystones
-
1. Number
Calculate: 63 + 30
Answer: 63 + 30 = 93 -
2. Algebra
Solve: 2x = 18
Answer: x = 9 -
3. Geometry
Opposite = 12cm, adjacent = 19cm. Calculate the angle
Answer: 32.3° -
4. Ratio
Simplify the ratio 25:30
Answer: 5:6 -
5. Statistics
Calculate the mean of: 15, 5, 45, 40, 32, 27, 5, 29
Answer: 24.8