Keystones — Bedrock
Five GCSE retrieval questions · 13 September 2012 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 68 + 68
Answer: 68 + 68 = 136 -
2. Algebra Substitution
If x = 6, find the value of 8x + 11
Answer: 59 -
3. Geometry Converting lengths
Convert 9cm to mm
Answer: 90mm -
4. Ratio Simplifying ratios
Simplify the ratio 30:20
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 19, 12, 8, 9
Answer: 12