Keystones — Bedrock
Five GCSE retrieval questions · 28 September 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 21
Answer: 20 + 21 = 41 -
2. Algebra Substitution
If x = 8, find the value of 7x + 7
Answer: 63 -
3. Geometry Converting lengths
Convert 15m to cm
Answer: 1500cm -
4. Ratio Simplifying ratios
Simplify the ratio 6:24
Answer: 1:4 -
5. Statistics Mean
Find the mean of: 10, 12, 3, 7, 11
Answer: 8.6