Keystones — Bedrock
Five GCSE retrieval questions · 9 November 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 48
Answer: 23 + 48 = 71 -
2. Algebra Substitution
If x = 9, find the value of 8x + 5
Answer: 77 -
3. Geometry Converting lengths
Convert 9cm to mm
Answer: 90mm -
4. Ratio Simplifying ratios
Simplify the ratio 30:25
Answer: 6:5 -
5. Statistics Mean
Find the mean of: 7, 24, 11
Answer: 14