Keystones — Lintel
Five GCSE retrieval questions · 15 March 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 4⁄6 + 1⁄2 + 1⁄2
Answer: 5⁄3 -
2. Algebra
Solve: x⁄7 = 1
Answer: x = 7 -
3. Geometry
Opposite = 13cm, adjacent = 10cm. Calculate the angle
Answer: 52.4° -
4. Ratio
Simplify: 8:10:8
Answer: 4:5:4 -
5. Statistics
A bag has 4 red and 6 blue balls. What is the probability of picking a red ball?
Answer: 2⁄5