Keystones — Lintel
Five GCSE retrieval questions · 17 April 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 999 + 628
Answer: 1627 -
2. Algebra
Solve: x⁄7 = 2
Answer: x = 14 -
3. Geometry
Calculate the hypotenuse when a = 11cm and b = 15cm
Answer: 18.6cm -
4. Ratio
Find 71% of 403
Answer: 286.13 -
5. Statistics
A bag has 6 red and 7 blue balls. What is the probability of picking a red ball?
Answer: 6⁄13