Keystones — Bedrock
Five GCSE retrieval questions · 5 August 2021 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 22 + 20
Answer: 22 + 20 = 42 -
2. Algebra Substitution
If x = 3, find the value of 6x + 5
Answer: 23 -
3. Geometry Converting lengths
Convert 20cm to mm
Answer: 200mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:14
Answer: 6:7 -
5. Statistics Mean
Find the mean of: 9, 18, 14
Answer: 13.666666666667