Keystones — Lintel
Five GCSE retrieval questions · 24 April 2026 · mathsvault.uk/keystones
-
1. Number
Calculate: 4⁄6 + 1⁄4 + 2⁄3
Answer: 19⁄12 -
2. Algebra
Solve: x⁄4 = 3.25
Answer: x = 13 -
3. Geometry
Calculate the area of a circle with diameter 8cm
Answer: 50.27cm² -
4. Ratio
Simplify: 12:8:6
Answer: 6:4:3 -
5. Statistics
A bag has 6 red and 7 blue balls. What is the probability of picking a red ball?
Answer: 6⁄13