Keystones — Lintel
Five GCSE retrieval questions · 11 February 2026 · mathsvault.uk/keystones
-
1. Number
Add: 2⁄6 + 3⁄8
Answer: 17⁄24 -
2. Algebra
Solve: x⁄4 = 5.5
Answer: x = 22 -
3. Geometry
Opposite = 18cm, adjacent = 8cm. Calculate the angle
Answer: 66° -
4. Ratio
Calculate 39.2% of 286
Answer: 112.11 -
5. Statistics
A bag has 4 red and 6 blue balls. What is the probability of picking a red ball?
Answer: 2⁄5