Keystones — Bedrock
Five GCSE retrieval questions · 31 October 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 70 + 86
Answer: 70 + 86 = 156 -
2. Algebra Substitution
If x = 10, find the value of 5x + 11
Answer: 61 -
3. Geometry Converting lengths
Convert 20cm to mm
Answer: 200mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:32
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 14, 10, 12, 20, 5
Answer: 12.2