Keystones — Bedrock
Five GCSE retrieval questions · 7 September 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 22 + 39
Answer: 22 + 39 = 61 -
2. Algebra Substitution
If x = 5, find the value of 8x + 8
Answer: 48 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 9:21
Answer: 3:7 -
5. Statistics Mean
Find the mean of: 11, 8, 4, 9
Answer: 8