Keystones — Bedrock
Five GCSE retrieval questions · 13 February 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 43
Answer: 23 + 43 = 66 -
2. Algebra Substitution
If x = 8, find the value of 3x + 10
Answer: 34 -
3. Geometry Converting lengths
Convert 11cm to mm
Answer: 110mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:6
Answer: 7:2 -
5. Statistics Mean
Find the mean of: 10, 8, 25, 16, 11
Answer: 14