Keystones — Cornerstone
Five GCSE retrieval questions · 15 June 2025 · mathsvault.uk/keystones
-
1. Number
Calculate: 33 + 28
Answer: 33 + 28 = 61 -
2. Algebra
Collect like terms: 4x + 7y + 5x + 2y
Answer: 9x + 9y -
3. Geometry
Opposite = 8cm, adjacent = 15cm. Calculate the angle
Answer: 28.1° -
4. Ratio
Simplify: 15:6:12
Answer: 5:2:4 -
5. Statistics
Calculate the mean of: 47, 42, 49, 16, 7, 42, 48, 27
Answer: 34.8