Keystones — Bedrock
Five GCSE retrieval questions · 29 February 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 21
Answer: 20 + 21 = 41 -
2. Algebra Substitution
If x = 10, find the value of 6x + 11
Answer: 71 -
3. Geometry Converting lengths
Convert 12m to cm
Answer: 1200cm -
4. Ratio Simplifying ratios
Simplify the ratio 14:6
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 12, 10, 20
Answer: 14