Keystones — Bedrock
Five GCSE retrieval questions · 11 May 2011 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 73 + 33
Answer: 73 + 33 = 106 -
2. Algebra Substitution
If x = 5, find the value of 5x + 7
Answer: 32 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:24
Answer: 2:3 -
5. Statistics Mean
Find the mean of: 6, 3, 12, 5, 19
Answer: 9