Keystones — Bedrock
Five GCSE retrieval questions · 11 December 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 11
Answer: 21 + 11 = 32 -
2. Algebra Substitution
If x = 2, find the value of 3x + 11
Answer: 17 -
3. Geometry Converting lengths
Convert 8m to cm
Answer: 800cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:24
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 2, 5, 8, 20, 15
Answer: 10