Keystones — Bedrock
Five GCSE retrieval questions · 30 July 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 50
Answer: 21 + 50 = 71 -
2. Algebra Substitution
If x = 3, find the value of 8x + 7
Answer: 31 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:18
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 11, 16, 12, 3
Answer: 10.5