Keystones — Bedrock
Five GCSE retrieval questions · 20 September 2021 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 88 + 29
Answer: 88 + 29 = 117 -
2. Algebra Substitution
If x = 7, find the value of 2x + 4
Answer: 18 -
3. Geometry Converting lengths
Convert 18cm to mm
Answer: 180mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:15
Answer: 5:3 -
5. Statistics Mean
Find the mean of: 3, 19, 18, 10, 20
Answer: 14