Keystones — Bedrock
Five GCSE retrieval questions · 5 September 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 72 + 71
Answer: 72 + 71 = 143 -
2. Algebra Substitution
If x = 4, find the value of 5x + 3
Answer: 23 -
3. Geometry Converting lengths
Convert 10cm to mm
Answer: 100mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:14
Answer: 4:7 -
5. Statistics Mean
Find the mean of: 17, 10, 21, 11, 16
Answer: 15