Keystones — Bedrock
Five GCSE retrieval questions · 16 March 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 30
Answer: 45 + 30 = 75 -
2. Algebra Substitution
If x = 10, find the value of 4x + 9
Answer: 49 -
3. Geometry Converting lengths
Convert 16m to cm
Answer: 1600cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:24
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 12, 6, 17, 13
Answer: 12