Keystones — Bedrock
Five GCSE retrieval questions · 4 August 2025 · mathsvault.uk/keystones
-
1. Number
Calculate: 49 + 15
Answer: 49 + 15 = 64 -
2. Algebra
Factorise: 30x + 25
Answer: 5(6x + 5) -
3. Geometry
Opposite = 10cm, hypotenuse = 11.5cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 25:15
Answer: 5:3 -
5. Statistics
Find the mean of: 11, 17, 18, 13
Answer: 14.75