Keystones — Bedrock
Five GCSE retrieval questions · 3 September 2013 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 90 + 90
Answer: 90 + 90 = 180 -
2. Algebra Substitution
If x = 5, find the value of 5x + 12
Answer: 37 -
3. Geometry Converting lengths
Convert 2m to cm
Answer: 200cm -
4. Ratio Simplifying ratios
Simplify the ratio 28:24
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 15, 11, 14, 9, 16
Answer: 13