Keystones — Bedrock
Five GCSE retrieval questions · 26 May 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 77 + 44
Answer: 77 + 44 = 121 -
2. Algebra Substitution
If x = 9, find the value of 3x + 5
Answer: 32 -
3. Geometry Converting lengths
Convert 42cm to mm
Answer: 420mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:30
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 17, 6, 12, 25
Answer: 15