Keystones — Lintel
Five GCSE retrieval questions · 22 March 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 132. What are the numbers?
Answer: 43, 44, and 45 -
2. Algebra
For y = x³ + 7, calculate y when x = 2
Answer: y = 15 -
3. Geometry
Find c if a = 9cm and b = 11cm in a right triangle
Answer: 14.2cm -
4. Ratio
Calculate 25.7% of 566
Answer: 145.46 -
5. Statistics
A spinner has 2 red, 2 blue and 3 green sections. Probability of landing on red?
Answer: 2⁄7