Keystones — Lintel
Five GCSE retrieval questions · 9 January 2022 · mathsvault.uk/keystones
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1. Number
Add: 3⁄5 + 2⁄6
Answer: 14⁄15 -
2. Algebra
Factorise fully: 28x² + 24x
Answer: 4x(7x + 6) -
3. Geometry
Calculate the distance between (3, 6) and (6, 10)
Answer: 5 -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
A bag has 3 red and 6 blue balls. What is the probability of picking a red ball?
Answer: 1⁄3