Keystones — Bedrock
Five GCSE retrieval questions · 1 January 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 77 + 70
Answer: 77 + 70 = 147 -
2. Algebra Substitution
If x = 3, find the value of 5x + 6
Answer: 21 -
3. Geometry Converting lengths
Convert 26cm to mm
Answer: 260mm -
4. Ratio Simplifying ratios
Simplify the ratio 30:20
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 10, 18, 3, 5
Answer: 9