Keystones — Cornerstone
Five GCSE retrieval questions · 28 October 2021 · mathsvault.uk/keystones
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1. Number
Find the total of 138, 206, and 144
Answer: 488 -
2. Algebra
Find the next term: 23, 28, 33, 38, ...
Answer: 43 -
3. Geometry
Calculate the distance between (8, 2) and (11, 6)
Answer: 5 -
4. Ratio
Simplify the ratio 6:9
Answer: 2:3 -
5. Statistics
A bag has 5 red and 3 blue balls. What is the probability of picking a red ball?
Answer: 5⁄8