Keystones — Bedrock
Five GCSE retrieval questions · 17 December 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 81 + 62
Answer: 81 + 62 = 143 -
2. Algebra Substitution
If x = 3, find the value of 4x + 5
Answer: 17 -
3. Geometry Converting lengths
Convert 9m to cm
Answer: 900cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:20
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 20, 19, 9
Answer: 16