Keystones — Bedrock
Five GCSE retrieval questions · 22 July 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 17
Answer: 25 + 17 = 42 -
2. Algebra Substitution
If x = 4, find the value of 2x + 12
Answer: 20 -
3. Geometry Converting lengths
Convert 19m to cm
Answer: 1900cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:4
Answer: 3:1 -
5. Statistics Mean
Find the mean of: 19, 8, 3, 11, 16
Answer: 11.4