Keystones — Bedrock
Five GCSE retrieval questions · 29 October 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 10 + 11
Answer: 10 + 11 = 21 -
2. Algebra Substitution
If x = 5, find the value of 6x + 12
Answer: 42 -
3. Geometry Converting lengths
Convert 7cm to mm
Answer: 70mm -
4. Ratio Simplifying ratios
Simplify the ratio 35:40
Answer: 7:8 -
5. Statistics Mean
Find the mean of: 9, 8, 17, 18
Answer: 13