Keystones — Bedrock
Five GCSE retrieval questions · 15 January 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 91 + 48
Answer: 91 + 48 = 139 -
2. Algebra Substitution
If x = 9, find the value of 3x + 4
Answer: 31 -
3. Geometry Converting lengths
Convert 13cm to mm
Answer: 130mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:10
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 19, 7, 18, 18, 3
Answer: 13