Keystones — Lintel
Five GCSE retrieval questions · 30 October 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 997 + 820
Answer: 1817 -
2. Algebra
Factorise: 4x² + 8x
Answer: 4x(x + 2) -
3. Geometry
Calculate perimeter: two sides are 15cm and 13cm at right angles
Answer: 47.8cm -
4. Ratio
Find 32% of 61
Answer: 19.52 -
5. Statistics
Find the range of: 23, -7, 17, -23, 11
Answer: 46