Keystones — Bedrock
Five GCSE retrieval questions · 30 October 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 78 + 27
Answer: 78 + 27 = 105 -
2. Algebra Substitution
If x = 10, find the value of 7x + 11
Answer: 81 -
3. Geometry Converting lengths
Convert 12cm to mm
Answer: 120mm -
4. Ratio Simplifying ratios
Simplify the ratio 35:15
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 11, 5, 20
Answer: 12