Keystones — Bedrock
Five GCSE retrieval questions · 2 May 2011 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 53 + 20
Answer: 53 + 20 = 73 -
2. Algebra Substitution
If x = 9, find the value of 5x + 7
Answer: 52 -
3. Geometry Converting lengths
Convert 15cm to mm
Answer: 150mm -
4. Ratio Simplifying ratios
Simplify the ratio 18:12
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 4, 7, 19, 9, 6
Answer: 9