Keystones — Bedrock
Five GCSE retrieval questions · 22 May 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 36
Answer: 21 + 36 = 57 -
2. Algebra Substitution
If x = 10, find the value of 4x + 10
Answer: 50 -
3. Geometry Converting lengths
Convert 8cm to mm
Answer: 80mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:40
Answer: 5:8 -
5. Statistics Mean
Find the mean of: 8, 20, 13, 4, 5
Answer: 10