Keystones — Lintel
Five GCSE retrieval questions · 21 June 2023 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 93. What are the numbers?
Answer: 30, 31, and 32 -
2. Algebra
Solve: 3x = 27
Answer: x = 9 -
3. Geometry
Calculate perimeter: two sides are 7cm and 12cm at right angles
Answer: 32.9cm -
4. Ratio
Find 39% of 64
Answer: 24.96 -
5. Statistics
A spinner has 6 red, 2 blue and 3 green sections. Probability of landing on red?
Answer: 6⁄11