Keystones — Bedrock
Five GCSE retrieval questions · 29 March 2010 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 77 + 22
Answer: 77 + 22 = 99 -
2. Algebra Substitution
If x = 5, find the value of 5x + 10
Answer: 35 -
3. Geometry Converting lengths
Convert 8m to cm
Answer: 800cm -
4. Ratio Simplifying ratios
Simplify the ratio 28:8
Answer: 7:2 -
5. Statistics Mean
Find the mean of: 7, 5, 15
Answer: 9