Keystones — Bedrock
Five GCSE retrieval questions · 2 June 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 20
Answer: 30 + 20 = 50 -
2. Algebra Substitution
If x = 8, find the value of 6x + 6
Answer: 54 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:24
Answer: 2:3 -
5. Statistics Mean
Find the mean of: 9, 6, 13, 12
Answer: 10