Keystones — Lintel
Five GCSE retrieval questions · 5 April 2024 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 105. What are the numbers?
Answer: 34, 35, and 36 -
2. Algebra
Expand: 3(3x + 9)
Answer: 9x + 27 -
3. Geometry
Calculate perimeter: two sides are 8cm and 9cm at right angles
Answer: 29cm -
4. Ratio
Simplify the ratio 5m:500cm
Answer: 1:100 -
5. Statistics
Find the range of: -21, 28, -13, 0, -27
Answer: 55