Keystones — Lintel
Five GCSE retrieval questions · 17 August 2022 · mathsvault.uk/keystones
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1. Number
Find the total of 209, 254, and 125
Answer: 588 -
2. Algebra
Simplify: 5x - 4x + 8y - y
Answer: x + 7y -
3. Geometry
Find c if a = 10cm and b = 25cm in a right triangle
Answer: 26.9cm -
4. Ratio
Calculate 22.3% of 987
Answer: 220.1 -
5. Statistics
A bag has 4 red and 8 blue balls. What is the probability of picking a red ball?
Answer: 1⁄3