Keystones — Bedrock
Five GCSE retrieval questions · 29 March 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 10 + 15
Answer: 10 + 15 = 25 -
2. Algebra Substitution
If x = 3, find the value of 3x + 6
Answer: 15 -
3. Geometry Converting lengths
Convert 9m to cm
Answer: 900cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:6
Answer: 4:1 -
5. Statistics Mean
Find the mean of: 15, 19, 8, 17, 12
Answer: 14.2