Keystones — Bedrock
Five GCSE retrieval questions · 15 June 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 78 + 50
Answer: 78 + 50 = 128 -
2. Algebra Substitution
If x = 2, find the value of 3x + 7
Answer: 13 -
3. Geometry Converting lengths
Convert 29cm to mm
Answer: 290mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:30
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 10, 4, 8, 2
Answer: 6