Keystones — Lintel
Five GCSE retrieval questions · 17 March 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 43 + ? = 150
Answer: 107 -
2. Algebra
Solve: 7x = 21
Answer: x = 3 -
3. Geometry
Calculate the hypotenuse when a = 8cm and b = 12cm
Answer: 14.42cm -
4. Ratio
Find 26% of 257
Answer: 66.82 -
5. Statistics
A spinner has 5 red, 6 blue and 4 green sections. Probability of landing on red?
Answer: 1⁄3