Keystones — Cornerstone
Five GCSE retrieval questions · 1 January 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 68 + 51
Answer: 68 + 51 = 119 -
2. Algebra
Solve: 8x = 24
Answer: x = 3 -
3. Geometry
Find the hypotenuse of a right triangle with sides 8cm and 15cm
Answer: 17cm -
4. Ratio
Find 38% of 123
Answer: 46.74 -
5. Statistics
Calculate the mean of: 22, 44, 23, 35, 49, 21, 37
Answer: 33