Keystones — Bedrock
Five GCSE retrieval questions · 19 January 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 99 + 49
Answer: 99 + 49 = 148 -
2. Algebra Substitution
If x = 6, find the value of 8x + 4
Answer: 52 -
3. Geometry Converting lengths
Convert 2m to cm
Answer: 200cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:24
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 13, 3, 18, 2
Answer: 9