Keystones — Bedrock
Five GCSE retrieval questions · 22 August 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 13
Answer: 25 + 13 = 38 -
2. Algebra Substitution
If x = 8, find the value of 2x + 6
Answer: 22 -
3. Geometry Converting lengths
Convert 39cm to mm
Answer: 390mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:24
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 7, 19, 1
Answer: 9