Keystones — Bedrock
Five GCSE retrieval questions · 24 February 2014 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 31 + 46
Answer: 31 + 46 = 77 -
2. Algebra Substitution
If x = 9, find the value of 6x + 9
Answer: 63 -
3. Geometry Converting lengths
Convert 21cm to mm
Answer: 210mm -
4. Ratio Simplifying ratios
Simplify the ratio 28:24
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 2, 15, 20, 3, 5
Answer: 9