Keystones — Bedrock
Five GCSE retrieval questions · 3 June 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 15
Answer: 25 + 15 = 40 -
2. Algebra Substitution
If x = 5, find the value of 8x + 10
Answer: 50 -
3. Geometry Converting lengths
Convert 39cm to mm
Answer: 390mm -
4. Ratio Simplifying ratios
Simplify the ratio 32:20
Answer: 8:5 -
5. Statistics Mean
Find the mean of: 9, 6, 12
Answer: 9