Keystones — Lintel
Five GCSE retrieval questions · 18 July 2022 · mathsvault.uk/keystones
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1. Number
Find the missing number: 9.92 + □ = 17.68
Answer: □ = 7.76 -
2. Algebra
Solve: x⁄2 = 15.5
Answer: x = 31 -
3. Geometry
Adjacent = 19cm, hypotenuse = 25cm. Find the angle
Answer: 40.5° -
4. Ratio
Calculate 14.5% of 405
Answer: 58.73 -
5. Statistics
A bag has 6 red and 6 blue balls. What is the probability of picking a red ball?
Answer: 1⁄2