Keystones — Bedrock
Five GCSE retrieval questions · 8 February 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 25
Answer: 30 + 25 = 55 -
2. Algebra Substitution
If x = 8, find the value of 7x + 12
Answer: 68 -
3. Geometry Converting lengths
Convert 17m to cm
Answer: 1700cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:28
Answer: 5:7 -
5. Statistics Mean
Find the mean of: 20, 17, 5
Answer: 14