Keystones — Bedrock
Five GCSE retrieval questions · 13 January 2011 · mathsvault.uk/keystones
-
1. Number Adding whole numbers
Calculate: 39 + 25
Answer: 39 + 25 = 64 -
2. Algebra Substitution
If x = 9, find the value of 8x + 8
Answer: 80 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 18:21
Answer: 6:7 -
5. Statistics Mean
Find the mean of: 17, 14, 5
Answer: 12