Keystones — Bedrock
Five GCSE retrieval questions · 22 March 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 26 + 24
Answer: 26 + 24 = 50 -
2. Algebra Substitution
If x = 2, find the value of 8x + 8
Answer: 24 -
3. Geometry Converting lengths
Convert 19cm to mm
Answer: 190mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:6
Answer: 4:1 -
5. Statistics Mean
Find the mean of: 10, 19, 20, 16, 10
Answer: 15