Keystones — Bedrock
Five GCSE retrieval questions · 7 October 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 66 + 60
Answer: 66 + 60 = 126 -
2. Algebra Substitution
If x = 5, find the value of 2x + 6
Answer: 16 -
3. Geometry Converting lengths
Convert 39cm to mm
Answer: 390mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:21
Answer: 5:7 -
5. Statistics Mean
Find the mean of: 1, 18, 9, 8, 9
Answer: 9