Keystones — Bedrock
Five GCSE retrieval questions · 31 March 2010 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 25 + 40
Answer: 25 + 40 = 65 -
2. Algebra Substitution
If x = 3, find the value of 5x + 6
Answer: 21 -
3. Geometry Converting lengths
Convert 9m to cm
Answer: 900cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:30
Answer: 2:3 -
5. Statistics Mean
Find the mean of: 19, 10, 13
Answer: 14