Keystones — Cornerstone
Five GCSE retrieval questions · 21 April 2026 · mathsvault.uk/keystones
-
1. Number
Calculate: 57 + 46
Answer: 57 + 46 = 103 -
2. Algebra
Collect like terms: 3x + 6y + 4x + 3y
Answer: 7x + 9y -
3. Geometry
Find the perimeter of a right triangle with sides 5cm, 12cm, 13cm
Answer: 30cm -
4. Ratio
Simplify the ratio 8:10
Answer: 4:5 -
5. Statistics
Find the mean of: 18, 10, 8, 8, 10
Answer: 10.8