Keystones — Bedrock
Five GCSE retrieval questions · 7 March 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 55 + 90
Answer: 55 + 90 = 145 -
2. Algebra Substitution
If x = 2, find the value of 2x + 11
Answer: 15 -
3. Geometry Converting lengths
Convert 47cm to mm
Answer: 470mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:35
Answer: 4:7 -
5. Statistics Mean
Find the mean of: 6, 8, 5, 19, 5
Answer: 8.6