Keystones — Lintel
Five GCSE retrieval questions · 4 December 2022 · 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
Solve: 4x = 44
Answer: x = 11 -
3. Geometry
Calculate the hypotenuse when a = 10cm and b = 7cm
Answer: 12.21cm -
4. Ratio
Simplify: 4:8:12
Answer: 1:2:3 -
5. Statistics
A spinner has 4 red, 6 blue and 3 green sections. Probability of landing on red?
Answer: 4⁄13