Keystones — Bedrock
Five GCSE retrieval questions · 27 August 2019 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 20 + 38
Answer: 20 + 38 = 58 -
2. Algebra Substitution
If x = 9, find the value of 4x + 9
Answer: 45 -
3. Geometry Converting lengths
Convert 10m to cm
Answer: 1000cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:15
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 13, 19, 20, 8, 16
Answer: 15.2