Keystones — Bedrock
Five GCSE retrieval questions · 30 August 2017 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 88 + 50
Answer: 88 + 50 = 138 -
2. Algebra Substitution
If x = 4, find the value of 4x + 6
Answer: 22 -
3. Geometry Converting lengths
Convert 27cm to mm
Answer: 270mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:20
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 8, 19, 8, 15, 20
Answer: 14