Keystones — Bedrock
Five GCSE retrieval questions · 29 December 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 52 + 47
Answer: 52 + 47 = 99 -
2. Algebra Substitution
If x = 3, find the value of 4x + 10
Answer: 22 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:25
Answer: 4:5 -
5. Statistics Mean
Find the mean of: 5, 12, 15, 8, 10
Answer: 10