Keystones — Bedrock
Five GCSE retrieval questions · 4 March 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 18
Answer: 20 + 18 = 38 -
2. Algebra Substitution
If x = 9, find the value of 7x + 10
Answer: 73 -
3. Geometry Converting lengths
Convert 42cm to mm
Answer: 420mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:32
Answer: 1:4 -
5. Statistics Mean
Find the mean of: 16, 5, 15
Answer: 12