Keystones — Bedrock
Five GCSE retrieval questions · 17 May 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 31 + 39
Answer: 31 + 39 = 70 -
2. Algebra Substitution
If x = 6, find the value of 3x + 4
Answer: 22 -
3. Geometry Converting lengths
Convert 22cm to mm
Answer: 220mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:25
Answer: 2:5 -
5. Statistics Mean
Find the mean of: 2, 7, 7, 13, 16
Answer: 9