Keystones — Bedrock
Five GCSE retrieval questions · 17 August 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 38 + 47
Answer: 38 + 47 = 85 -
2. Algebra Substitution
If x = 7, find the value of 4x + 8
Answer: 36 -
3. Geometry Converting lengths
Convert 18cm to mm
Answer: 180mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:15
Answer: 8:5 -
5. Statistics Mean
Find the mean of: 16, 12, 8, 19, 14
Answer: 13.8