Keystones — Bedrock
Five GCSE retrieval questions · 17 June 2010 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 67 + 91
Answer: 67 + 91 = 158 -
2. Algebra Substitution
If x = 10, find the value of 8x + 11
Answer: 91 -
3. Geometry Converting lengths
Convert 24cm to mm
Answer: 240mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:12
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 8, 3, 14, 23
Answer: 12