Keystones — Lintel
Five GCSE retrieval questions · 24 December 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 82 + ? = 183
Answer: 101 -
2. Algebra
Solve: 2x = 16
Answer: x = 8 -
3. Geometry
Calculate the area of a right triangle with perpendicular sides 9cm and 8cm
Answer: 36cm² -
4. Ratio
Find 48% of 415
Answer: 199.2 -
5. Statistics
Calculate the mean of: 27, 16, 20, 16, 14, 11, 28, 32
Answer: 20.5