Keystones — Cornerstone
Five GCSE retrieval questions · 3 March 2025 · mathsvault.uk/keystones
-
1. Number
What is the missing number: 94 + ? = 180
Answer: 86 -
2. Algebra
What is the next term? 2, 4, 8, 16, ...
Answer: 32 -
3. Geometry
Opposite = 14cm, adjacent = 15cm. Calculate the angle
Answer: 43° -
4. Ratio
Simplify: 20:12:12
Answer: 5:3:3 -
5. Statistics
Find the mean of: 19, 9, 10, 10
Answer: 12