Keystones — Bedrock
Five GCSE retrieval questions · 23 May 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 65 + 52
Answer: 65 + 52 = 117 -
2. Algebra Substitution
If x = 10, find the value of 2x + 9
Answer: 29 -
3. Geometry Converting lengths
Convert 25cm to mm
Answer: 250mm -
4. Ratio Simplifying ratios
Simplify the ratio 40:20
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 4, 21, 13, 14
Answer: 13