Keystones — Bedrock
Five GCSE retrieval questions · 21 May 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 48 + 21
Answer: 48 + 21 = 69 -
2. Algebra Substitution
If x = 4, find the value of 8x + 6
Answer: 38 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 30:25
Answer: 6:5 -
5. Statistics Mean
Find the mean of: 17, 13, 9
Answer: 13