Keystones — Bedrock
Five GCSE retrieval questions · 19 December 2013 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 99 + 83
Answer: 99 + 83 = 182 -
2. Algebra Substitution
If x = 6, find the value of 3x + 9
Answer: 27 -
3. Geometry Converting lengths
Convert 21cm to mm
Answer: 210mm -
4. Ratio Simplifying ratios
Simplify the ratio 30:25
Answer: 6:5 -
5. Statistics Mean
Find the mean of: 14, 8, 11, 15
Answer: 12