Keystones — Bedrock
Five GCSE retrieval questions · 8 January 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 81 + 63
Answer: 81 + 63 = 144 -
2. Algebra Substitution
If x = 10, find the value of 7x + 3
Answer: 73 -
3. Geometry Converting lengths
Convert 9m to cm
Answer: 900cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:20
Answer: 4:5 -
5. Statistics Mean
Find the mean of: 3, 19, 14
Answer: 12