Keystones — Lintel
Five GCSE retrieval questions · 11 September 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 991 + 800
Answer: 1791 -
2. Algebra
For y = 4x³ + 11, find y when x = 4
Answer: y = 267 -
3. Geometry
Calculate the area of a right triangle with perpendicular sides 10cm and 11cm
Answer: 55cm² -
4. Ratio
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics
A bag has 3 red and 3 blue balls. What is the probability of picking a red ball?
Answer: 1⁄2