Keystones — Bedrock
Five GCSE retrieval questions · 17 March 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 70 + 71
Answer: 70 + 71 = 141 -
2. Algebra Substitution
If x = 8, find the value of 6x + 4
Answer: 52 -
3. Geometry Converting lengths
Convert 9m to cm
Answer: 900cm -
4. Ratio Simplifying ratios
Simplify the ratio 8:24
Answer: 1:3 -
5. Statistics Mean
Find the mean of: 16, 7, 19, 14
Answer: 14