Keystones — Bedrock
Five GCSE retrieval questions · 23 January 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 31
Answer: 25 + 31 = 56 -
2. Algebra Substitution
If x = 6, find the value of 8x + 4
Answer: 52 -
3. Geometry Converting lengths
Convert 40cm to mm
Answer: 400mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:9
Answer: 5:3 -
5. Statistics Mean
Find the mean of: 13, 19, 3, 13
Answer: 12