Keystones — Lintel
Five GCSE retrieval questions · 19 February 2022 · mathsvault.uk/keystones
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1. Number
Calculate: (-22) + (-21) + (-7)
Answer: -50 -
2. Algebra
What is the next term? 5, 20, 80, 320, ...
Answer: 1280 -
3. Geometry
Adjacent = 23cm, hypotenuse = 36cm. Find the angle
Answer: 50.3° -
4. Ratio
Calculate 41.2% of 669
Answer: 275.63 -
5. Statistics
A bag has 7 red and 5 blue balls. What is the probability of picking a red ball?
Answer: 7⁄12