Keystones — Bedrock
Five GCSE retrieval questions · 28 April 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 77 + 55
Answer: 77 + 55 = 132 -
2. Algebra Substitution
If x = 9, find the value of 8x + 4
Answer: 76 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 28:24
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 9, 9, 18
Answer: 12