Keystones — Bedrock
Five GCSE retrieval questions · 21 June 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 42 + 98
Answer: 42 + 98 = 140 -
2. Algebra Substitution
If x = 10, find the value of 2x + 3
Answer: 23 -
3. Geometry Converting lengths
Convert 2m to cm
Answer: 200cm -
4. Ratio Simplifying ratios
Simplify the ratio 30:15
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 20, 12, 15, 14, 4
Answer: 13