Keystones — Bedrock
Five GCSE retrieval questions · 22 January 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 91 + 90
Answer: 91 + 90 = 181 -
2. Algebra Substitution
If x = 5, find the value of 4x + 8
Answer: 28 -
3. Geometry Converting lengths
Convert 13m to cm
Answer: 1300cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:24
Answer: 5:8 -
5. Statistics Mean
Find the mean of: 12, 7, 1, 16
Answer: 9