Keystones — Bedrock
Five GCSE retrieval questions · 3 January 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 19 + 31
Answer: 19 + 31 = 50 -
2. Algebra Substitution
If x = 10, find the value of 3x + 3
Answer: 33 -
3. Geometry Converting lengths
Convert 9m to cm
Answer: 900cm -
4. Ratio Simplifying ratios
Simplify the ratio 18:15
Answer: 6:5 -
5. Statistics Mean
Find the mean of: 18, 9, 6, 16
Answer: 12.25