Keystones — Bedrock
Five GCSE retrieval questions · 10 September 2015 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 20 + 21
Answer: 20 + 21 = 41 -
2. Algebra Substitution
If x = 10, find the value of 2x + 7
Answer: 27 -
3. Geometry Converting lengths
Convert 43cm to mm
Answer: 430mm -
4. Ratio Simplifying ratios
Simplify the ratio 6:21
Answer: 2:7 -
5. Statistics Mean
Find the mean of: 3, 20, 7
Answer: 10