Keystones — Bedrock
Five GCSE retrieval questions · 23 January 2011 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 49 + 19
Answer: 49 + 19 = 68 -
2. Algebra Substitution
If x = 3, find the value of 2x + 4
Answer: 10 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:6
Answer: 7:2 -
5. Statistics Mean
Find the mean of: 11, 5, 14, 2
Answer: 8