Keystones — Cornerstone
Five GCSE retrieval questions · 5 May 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 49 + 85
Answer: 49 + 85 = 134 -
2. Algebra
Solve: 7x - 6 = 2x + 19
Answer: x = 5 -
3. Geometry
Opposite = 15cm, hypotenuse = 21.2cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Find 78% of 348
Answer: 271.44 -
5. Statistics
Calculate the mean of: 24, 21, 37, 19, 8, 16, 43, 37
Answer: 25.6