Keystones — Cornerstone
Five GCSE retrieval questions · 8 June 2025 · mathsvault.uk/keystones
-
1. Number
Calculate: 188 + 353
Answer: 188 + 353 = 541 -
2. Algebra
Factorise: 8x² + 4x
Answer: 4x(2x + 1) -
3. Geometry
Calculate the area of a circle with diameter 17cm
Answer: 226.98cm² -
4. Ratio
Simplify the ratio 4:6
Answer: 2:3 -
5. Statistics
Find the mean of: 8, 5, 16
Answer: 9.6666666666667