Keystones — Cornerstone
Five GCSE retrieval questions · 16 September 2024 · mathsvault.uk/keystones
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1. Number
What is 2 + 7.07 + 0.85?
Answer: 2 + 7.07 + 0.85 = 9.92 -
2. Algebra
Solve: 2x = 22
Answer: x = 11 -
3. Geometry
Opposite = 13cm, hypotenuse = 15cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Find 80% of 170
Answer: 136 -
5. Statistics
Calculate the mean of: 18, 45, 18, 7, 48, 43, 41
Answer: 31.4