Keystones — Bedrock
Five GCSE retrieval questions · 9 February 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 51 + 51
Answer: 51 + 51 = 102 -
2. Algebra Substitution
If x = 10, find the value of 5x + 3
Answer: 53 -
3. Geometry Converting lengths
Convert 13m to cm
Answer: 1300cm -
4. Ratio Simplifying ratios
Simplify the ratio 28:20
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 16, 8, 12, 16, 3
Answer: 11