Keystones — Bedrock
Five GCSE retrieval questions · 16 November 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 51 + 93
Answer: 51 + 93 = 144 -
2. Algebra Substitution
If x = 5, find the value of 6x + 8
Answer: 38 -
3. Geometry Converting lengths
Convert 7m to cm
Answer: 700cm -
4. Ratio Simplifying ratios
Simplify the ratio 40:20
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 20, 4, 1, 15
Answer: 10