Keystones — Bedrock
Five GCSE retrieval questions · 30 December 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 60
Answer: 30 + 60 = 90 -
2. Algebra Substitution
If x = 8, find the value of 8x + 7
Answer: 71 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 9:12
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 17, 11, 11, 20, 19
Answer: 15.6