Keystones — Bedrock
Five GCSE retrieval questions · 28 October 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 54
Answer: 23 + 54 = 77 -
2. Algebra Substitution
If x = 10, find the value of 8x + 8
Answer: 88 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 8:16
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 15, 10, 5
Answer: 10