Keystones — Bedrock
Five GCSE retrieval questions · 14 February 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 41 + 28
Answer: 41 + 28 = 69 -
2. Algebra Substitution
If x = 6, find the value of 3x + 9
Answer: 27 -
3. Geometry Converting lengths
Convert 16cm to mm
Answer: 160mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:28
Answer: 5:7 -
5. Statistics Mean
Find the mean of: 3, 10, 23, 20
Answer: 14