Keystones — Bedrock
Five GCSE retrieval questions · 23 December 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 28 + 22
Answer: 28 + 22 = 50 -
2. Algebra Substitution
If x = 7, find the value of 8x + 3
Answer: 59 -
3. Geometry Converting lengths
Convert 13m to cm
Answer: 1300cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:15
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 11, 21, 13, 8, 2
Answer: 11