Keystones — Bedrock
Five GCSE retrieval questions · 26 December 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 46 + 32
Answer: 46 + 32 = 78 -
2. Algebra Substitution
If x = 7, find the value of 3x + 6
Answer: 27 -
3. Geometry Converting lengths
Convert 21cm to mm
Answer: 210mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:12
Answer: 5:3 -
5. Statistics Mean
Find the mean of: 10, 15, 18, 2, 18
Answer: 12.6