Keystones — Bedrock
Five GCSE retrieval questions · 30 October 2016 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 40 + 80
Answer: 40 + 80 = 120 -
2. Algebra Substitution
If x = 6, find the value of 6x + 3
Answer: 39 -
3. Geometry Converting lengths
Convert 19m to cm
Answer: 1900cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:18
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 5, 16, 21
Answer: 14