Keystones — Bedrock
Five GCSE retrieval questions · 7 July 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 10 + 30
Answer: 10 + 30 = 40 -
2. Algebra Substitution
If x = 5, find the value of 7x + 5
Answer: 40 -
3. Geometry Converting lengths
Convert 9cm to mm
Answer: 90mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:15
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 2, 18, 2
Answer: 7.3333333333333