Keystones — Lintel
Five GCSE retrieval questions · 7 April 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 997 + 651
Answer: 1648 -
2. Algebra
Solve: 4x = 28
Answer: x = 7 -
3. Geometry
Find c if a = 11cm and b = 23cm in a right triangle
Answer: 25.5cm -
4. Ratio
Simplify: 9:15:15
Answer: 3:5:5 -
5. Statistics
Find the range of: -14, 39, 10, 43, -25
Answer: 68