Keystones — Bedrock
Five GCSE retrieval questions · 26 August 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 32
Answer: 21 + 32 = 53 -
2. Algebra Substitution
If x = 5, find the value of 4x + 11
Answer: 31 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 32:20
Answer: 8:5 -
5. Statistics Mean
Find the mean of: 9, 15, 7, 5
Answer: 9