Keystones — Bedrock
Five GCSE retrieval questions · 16 September 2023 · mathsvault.uk/keystones
-
1. Number
Calculate: 12 + 31
Answer: 12 + 31 = 43 -
2. Algebra
Simplify: 9x + 2x
Answer: 11x -
3. Geometry
Opposite = 7cm, hypotenuse = 14cm. Find the angle
Answer: 30° (approximately) -
4. Ratio
In ratio 3:2, the difference between shares is 26. What are the shares?
Answer: 78 and 52 -
5. Statistics
Find the mean of: 17, 20, 2
Answer: 13