Keystones — Bedrock
Five GCSE retrieval questions · 9 June 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 72
Answer: 20 + 72 = 92 -
2. Algebra Substitution
If x = 9, find the value of 2x + 3
Answer: 21 -
3. Geometry Converting lengths
Convert 21cm to mm
Answer: 210mm -
4. Ratio Simplifying ratios
Simplify the ratio 4:8
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 3, 3, 16, 20
Answer: 10.5