Keystones — Bedrock
Five GCSE retrieval questions · 19 June 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 29
Answer: 21 + 29 = 50 -
2. Algebra Substitution
If x = 8, find the value of 4x + 8
Answer: 40 -
3. Geometry Converting lengths
Convert 49cm to mm
Answer: 490mm -
4. Ratio Simplifying ratios
Simplify the ratio 40:30
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 2, 9, 14, 14, 6
Answer: 9