Keystones — Bedrock
Five GCSE retrieval questions · 17 December 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 17 + 25
Answer: 17 + 25 = 42 -
2. Algebra Substitution
If x = 4, find the value of 3x + 9
Answer: 21 -
3. Geometry Converting lengths
Convert 8m to cm
Answer: 800cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:32
Answer: 3:8 -
5. Statistics Mean
Find the mean of: 15, 17, 4, 19
Answer: 13.75