Keystones — Lintel
Five GCSE retrieval questions · 31 May 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 120. What are the numbers?
Answer: 39, 40, and 41 -
2. Algebra
Factorise fully: 16x² + 28x
Answer: 4x(4x + 7) -
3. Geometry
Adjacent = 28cm, hypotenuse = 43cm. Find the angle
Answer: 49.4° -
4. Ratio
Find 52% of 333
Answer: 173.16 -
5. Statistics
Find the range of: -17, 21, -28, 25, 49
Answer: 77