Keystones — Bedrock
Five GCSE retrieval questions · 23 July 2011 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 90 + 55
Answer: 90 + 55 = 145 -
2. Algebra Substitution
If x = 2, find the value of 2x + 10
Answer: 14 -
3. Geometry Converting lengths
Convert 30cm to mm
Answer: 300mm -
4. Ratio Simplifying ratios
Simplify the ratio 40:15
Answer: 8:3 -
5. Statistics Mean
Find the mean of: 2, 16, 17, 17
Answer: 13