Keystones — Lintel
Five GCSE retrieval questions · 27 January 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 999 + 854
Answer: 1853 -
2. Algebra
Factorise: 4x² + 6x
Answer: 2x(2x + 3) -
3. Geometry
Adjacent = 14cm, hypotenuse = 30cm. Find the angle
Answer: 62.2° -
4. Ratio
Calculate 37.6% of 229
Answer: 86.1 -
5. Statistics
A bag has 5 red and 4 blue balls. What is the probability of picking a red ball?
Answer: 5⁄9