Keystones — Lintel
Five GCSE retrieval questions · 8 October 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 135. What are the numbers?
Answer: 44, 45, and 46 -
2. Algebra
Expand: 6(2x - 5)
Answer: 12x - 30 -
3. Geometry
Calculate perimeter: two sides are 11cm and 11cm at right angles
Answer: 37.6cm -
4. Ratio
Find 49% of 343
Answer: 168.07 -
5. Statistics
Find the range of: 39, -16, 13, 20, -15
Answer: 55