Keystones — Bedrock
Five GCSE retrieval questions · 6 March 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 27
Answer: 39 + 27 = 66 -
2. Algebra Substitution
If x = 4, find the value of 6x + 8
Answer: 32 -
3. Geometry Converting lengths
Convert 18cm to mm
Answer: 180mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:30
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 9, 13, 7, 19, 17
Answer: 13