Keystones — Bedrock
Five GCSE retrieval questions · 18 May 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 48 + 45
Answer: 48 + 45 = 93 -
2. Algebra Substitution
If x = 5, find the value of 4x + 4
Answer: 24 -
3. Geometry Converting lengths
Convert 49cm to mm
Answer: 490mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:12
Answer: 7:4 -
5. Statistics Mean
Find the mean of: 3, 20, 13
Answer: 12