Keystones — Lintel
Five GCSE retrieval questions · 31 October 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 719 + 242
Answer: 719 + 242 = 961 -
2. Algebra
Simplify: 9x - 3x + 3y - y
Answer: 6x + 2y -
3. Geometry
Find the perimeter: hypotenuse = 22cm, one side = 10cm
Answer: 51.6cm -
4. Ratio
Find 48% of 82
Answer: 39.36 -
5. Statistics
A bag has 4 red and 7 blue balls. What is the probability of picking a red ball?
Answer: 4⁄11