Keystones — Bedrock
Five GCSE retrieval questions · 13 July 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 77 + 63
Answer: 77 + 63 = 140 -
2. Algebra Substitution
If x = 8, find the value of 7x + 10
Answer: 66 -
3. Geometry Converting lengths
Convert 21cm to mm
Answer: 210mm -
4. Ratio Simplifying ratios
Simplify the ratio 28:8
Answer: 7:2 -
5. Statistics Mean
Find the mean of: 6, 5, 20, 6, 15
Answer: 10.4