Keystones — Bedrock
Five GCSE retrieval questions · 15 December 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 75 + 71
Answer: 75 + 71 = 146 -
2. Algebra Substitution
If x = 5, find the value of 8x + 7
Answer: 47 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 25:40
Answer: 5:8 -
5. Statistics Mean
Find the mean of: 3, 17, 16
Answer: 12