Keystones — Bedrock
Five GCSE retrieval questions · 14 April 2021 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 81 + 48
Answer: 81 + 48 = 129 -
2. Algebra Substitution
If x = 10, find the value of 2x + 7
Answer: 27 -
3. Geometry Converting lengths
Convert 19cm to mm
Answer: 190mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:28
Answer: 4:7 -
5. Statistics Mean
Find the mean of: 12, 20, 11, 2, 14
Answer: 11.8