Keystones — Bedrock
Five GCSE retrieval questions · 25 May 2012 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 20 + 28
Answer: 20 + 28 = 48 -
2. Algebra Substitution
If x = 9, find the value of 8x + 3
Answer: 75 -
3. Geometry Converting lengths
Convert 29cm to mm
Answer: 290mm -
4. Ratio Simplifying ratios
Simplify the ratio 35:15
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 20, 7, 8, 14, 11
Answer: 12