Keystones — Bedrock
Five GCSE retrieval questions · 2 December 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 49 + 32
Answer: 49 + 32 = 81 -
2. Algebra Substitution
If x = 6, find the value of 2x + 4
Answer: 16 -
3. Geometry Converting lengths
Convert 21cm to mm
Answer: 210mm -
4. Ratio Simplifying ratios
Simplify the ratio 28:20
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 11, 15, 4
Answer: 10