Keystones — Bedrock
Five GCSE retrieval questions · 28 June 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 32 + 46
Answer: 32 + 46 = 78 -
2. Algebra Substitution
If x = 3, find the value of 8x + 6
Answer: 30 -
3. Geometry Converting lengths
Convert 39cm to mm
Answer: 390mm -
4. Ratio Simplifying ratios
Simplify the ratio 32:16
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 21, 6, 16, 5
Answer: 12