Keystones — Bedrock
Five GCSE retrieval questions · 19 January 2021 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 47 + 28
Answer: 47 + 28 = 75 -
2. Algebra Substitution
If x = 7, find the value of 2x + 12
Answer: 26 -
3. Geometry Converting lengths
Convert 19m to cm
Answer: 1900cm -
4. Ratio Simplifying ratios
Simplify the ratio 9:21
Answer: 3:7 -
5. Statistics Mean
Find the mean of: 4, 14, 11, 11, 16
Answer: 11.2