Keystones — Bedrock
Five GCSE retrieval questions · 30 October 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 38 + 92
Answer: 38 + 92 = 130 -
2. Algebra Substitution
If x = 2, find the value of 8x + 4
Answer: 20 -
3. Geometry Converting lengths
Convert 10m to cm
Answer: 1000cm -
4. Ratio Simplifying ratios
Simplify the ratio 9:24
Answer: 3:8 -
5. Statistics Mean
Find the mean of: 9, 1, 5
Answer: 5