Keystones — Bedrock
Five GCSE retrieval questions · 25 June 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 28 + 70
Answer: 28 + 70 = 98 -
2. Algebra Substitution
If x = 4, find the value of 5x + 11
Answer: 31 -
3. Geometry Converting lengths
Convert 12cm to mm
Answer: 120mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:16
Answer: 5:8 -
5. Statistics Mean
Find the mean of: 1, 20, 10, 5
Answer: 9