Keystones — Lintel
Five GCSE retrieval questions · 19 September 2025 · mathsvault.uk/keystones
-
1. Number
The sum of three consecutive numbers is 132. What are the numbers?
Answer: 43, 44, and 45 -
2. Algebra
Solve: 5x = 55
Answer: x = 11 -
3. Geometry
Opposite = 10cm, adjacent = 12cm. Calculate the angle
Answer: 39.8° -
4. Ratio
Simplify: 10:10:8
Answer: 5:5:4 -
5. Statistics
A spinner has 2 red, 6 blue and 2 green sections. Probability of landing on red?
Answer: 1⁄5