Keystones — Bedrock
Five GCSE retrieval questions · 9 October 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 12 + 26
Answer: 12 + 26 = 38 -
2. Algebra Substitution
If x = 7, find the value of 7x + 9
Answer: 58 -
3. Geometry Converting lengths
Convert 42cm to mm
Answer: 420mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:15
Answer: 2:3 -
5. Statistics Mean
Find the mean of: 6, 4, 15, 18, 9
Answer: 10.4