Keystones — Lintel
Five GCSE retrieval questions · 17 June 2023 · mathsvault.uk/keystones
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1. Number
Find the total of 249, 145, and 96
Answer: 490 -
2. Algebra
Solve: 7x = 63
Answer: x = 9 -
3. Geometry
Find the perimeter: hypotenuse = 26cm, one side = 17cm
Answer: 62.7cm -
4. Ratio
Simplify: 6:18:6
Answer: 1:3:1 -
5. Statistics
A bag has 6 red and 4 blue balls. What is the probability of picking a red ball?
Answer: 3⁄5