Keystones — Cornerstone

Five GCSE retrieval questions · 29 January 2023 · mathsvault.uk/keystones

1. Number

76000

Answer: 7.6 × 10⁴
2. Algebra

Solve: x + 11 = 28

Answer: x = 17
3. Geometry

Find the area of a circle with radius 3cm

Answer: 28.27cm²
4. Ratio

Calculate 25% of 194

Answer: 48.5
5. Statistics

Calculate the mean of: 19, 15, 17, 40, 15, 30, 16

Answer: 21.7

Same five questions for everyone on Cornerstone on this date. Sets are stored as JSON for reliable print-on-demand — sign in for school-branded PDFs.