Keystones — Bedrock
Five GCSE retrieval questions · 12 June 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 90 + 72
Answer: 90 + 72 = 162 -
2. Algebra Substitution
If x = 4, find the value of 3x + 4
Answer: 16 -
3. Geometry Converting lengths
Convert 17m to cm
Answer: 1700cm -
4. Ratio Simplifying ratios
Simplify the ratio 32:28
Answer: 8:7 -
5. Statistics Mean
Find the mean of: 20, 8, 3, 4, 10
Answer: 9