Keystones — Bedrock
Five GCSE retrieval questions · 3 December 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 11
Answer: 21 + 11 = 32 -
2. Algebra Substitution
If x = 4, find the value of 3x + 4
Answer: 16 -
3. Geometry Converting lengths
Convert 8m to cm
Answer: 800cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:32
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 5, 16, 12, 10, 2
Answer: 9