Keystones — Bedrock
Five GCSE retrieval questions · 23 May 2015 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 21 + 38
Answer: 21 + 38 = 59 -
2. Algebra Substitution
If x = 6, find the value of 4x + 9
Answer: 33 -
3. Geometry Converting lengths
Convert 40cm to mm
Answer: 400mm -
4. Ratio Simplifying ratios
Simplify the ratio 18:21
Answer: 6:7 -
5. Statistics Mean
Find the mean of: 9, 12, 6, 9
Answer: 9