Keystones — Lintel
Five GCSE retrieval questions · 28 June 2021 · mathsvault.uk/keystones
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1. Number
Find the total of 148, 248, and 79
Answer: 475 -
2. Algebra
For y = 4x³ + 11, find y when x = 3
Answer: y = 119 -
3. Geometry
Calculate the area of a circle with diameter 14cm
Answer: 153.94cm² -
4. Ratio
Find 43% of 292
Answer: 125.56 -
5. Statistics
A bag has 5 red and 3 blue balls. What is the probability of picking a red ball?
Answer: 5⁄8