Keystones — Lintel
Five GCSE retrieval questions · 13 June 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 996 + 745
Answer: 1741 -
2. Algebra
Factorise: 5x² + 5x
Answer: 5x(x + 1) -
3. Geometry
Adjacent = 29cm, hypotenuse = 38cm. Find the angle
Answer: 40.3° -
4. Ratio
Simplify: 18:18:6
Answer: 3:3:1 -
5. Statistics
A bag has 6 red and 7 blue balls. What is the probability of picking a red ball?
Answer: 6⁄13