Keystones — Bedrock
Five GCSE retrieval questions · 15 October 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 34 + 79
Answer: 34 + 79 = 113 -
2. Algebra Substitution
If x = 7, find the value of 7x + 6
Answer: 55 -
3. Geometry Converting lengths
Convert 42cm to mm
Answer: 420mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:10
Answer: 5:2 -
5. Statistics Mean
Find the mean of: 5, 4, 18, 3, 9
Answer: 7.8