Keystones — Bedrock
Five GCSE retrieval questions · 16 February 2016 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 20 + 48
Answer: 20 + 48 = 68 -
2. Algebra Substitution
If x = 10, find the value of 8x + 10
Answer: 90 -
3. Geometry Converting lengths
Convert 27cm to mm
Answer: 270mm -
4. Ratio Simplifying ratios
Simplify the ratio 6:15
Answer: 2:5 -
5. Statistics Mean
Find the mean of: 5, 20, 9, 18
Answer: 13