Keystones — Bedrock
Five GCSE retrieval questions · 18 October 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 42
Answer: 39 + 42 = 81 -
2. Algebra Substitution
If x = 7, find the value of 7x + 7
Answer: 56 -
3. Geometry Converting lengths
Convert 18cm to mm
Answer: 180mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:24
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 12, 5, 12, 16, 5
Answer: 10