Keystones — Bedrock
Five GCSE retrieval questions · 22 September 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 13 + 17
Answer: 13 + 17 = 30 -
2. Algebra Substitution
If x = 6, find the value of 6x + 5
Answer: 41 -
3. Geometry Converting lengths
Convert 16m to cm
Answer: 1600cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:12
Answer: 7:4 -
5. Statistics Mean
Find the mean of: 20, 6, 9, 3, 10
Answer: 9.6