Keystones — Bedrock
Five GCSE retrieval questions · 23 October 2011 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 55 + 20
Answer: 55 + 20 = 75 -
2. Algebra Substitution
If x = 3, find the value of 3x + 11
Answer: 20 -
3. Geometry Converting lengths
Convert 8cm to mm
Answer: 80mm -
4. Ratio Simplifying ratios
Simplify the ratio 32:16
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 17, 18, 7
Answer: 14