Keystones — Cornerstone
Five GCSE retrieval questions · 4 May 2026 · mathsvault.uk/keystones
-
1. Number
Add: 3⁄4 + 4⁄5
Answer: 31⁄20 -
2. Algebra
Solve: 2x = 6
Answer: x = 3 -
3. Geometry
Find the area of a right triangle with base 7cm and height 8cm
Answer: 28cm² -
4. Ratio
Simplify the ratio 4:8
Answer: 1:2 -
5. Statistics
Calculate the range of: 123, 64, 50, 104, 117, 116
Answer: 73