Keystones — Lintel
Five GCSE retrieval questions · 5 March 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 1⁄2 + 1⁄2 + 1⁄4
Answer: 5⁄4 -
2. Algebra
Solve: 6x = 42
Answer: x = 7 -
3. Geometry
Opposite = 13cm, adjacent = 14cm. Calculate the angle
Answer: 42.9° -
4. Ratio
Calculate 37.4% of 421
Answer: 157.45 -
5. Statistics
A bag has 4 red and 7 blue balls. What is the probability of picking a red ball?
Answer: 4⁄11