Keystones — Lintel
Five GCSE retrieval questions · 28 January 2022 · mathsvault.uk/keystones
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1. Number
Add: 1⁄4 + 2⁄5
Answer: 13⁄20 -
2. Algebra
Solve: 7x = 105
Answer: x = 15 -
3. Geometry
Adjacent = 17cm, hypotenuse = 31cm. Find the angle
Answer: 56.7° -
4. Ratio
Calculate 19.2% of 605
Answer: 116.16 -
5. Statistics
A bag has 6 red and 3 blue balls. What is the probability of picking a red ball?
Answer: 2⁄3