Keystones — Lintel
Five GCSE retrieval questions · 21 September 2021 · mathsvault.uk/keystones
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1. Number
Add: 2⁄3 + 5⁄8
Answer: 31⁄24 -
2. Algebra
Factorise: 8x² + 4x
Answer: 4x(2x + 1) -
3. Geometry
Adjacent = 24cm, hypotenuse = 38cm. Find the angle
Answer: 50.8° -
4. Ratio
Simplify the ratio 2m:200cm
Answer: 1:100 -
5. Statistics
A bag has 4 red and 3 blue balls. What is the probability of picking a red ball?
Answer: 4⁄7