Keystones — Bedrock
Five GCSE retrieval questions · 1 April 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 42 + 31
Answer: 42 + 31 = 73 -
2. Algebra Substitution
If x = 3, find the value of 3x + 10
Answer: 19 -
3. Geometry Converting lengths
Convert 19cm to mm
Answer: 190mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:12
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 14, 3, 12, 16, 20
Answer: 13