Keystones — Bedrock
Five GCSE retrieval questions · 1 November 2017 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 20 + 51
Answer: 20 + 51 = 71 -
2. Algebra Substitution
If x = 9, find the value of 8x + 9
Answer: 81 -
3. Geometry Converting lengths
Convert 15m to cm
Answer: 1500cm -
4. Ratio Simplifying ratios
Simplify the ratio 35:10
Answer: 7:2 -
5. Statistics Mean
Find the mean of: 25, 13, 10, 12, 10
Answer: 14