Keystones — Bedrock
Five GCSE retrieval questions · 3 April 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 33 + 38
Answer: 33 + 38 = 71 -
2. Algebra Substitution
If x = 9, find the value of 7x + 7
Answer: 70 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 30:20
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 16, 7, 20, 16, 10
Answer: 13.8