Keystones Lintel — 21 December 2021

Keystones — Lintel

Five GCSE retrieval questions · 21 December 2021 · mathsvault.uk/keystones

1. Number

Calculate: 1.32 + 17.22 + 0.792

Answer: 1.32 + 17.22 + 0.792 = 19.332
2. Algebra

Solve: ^x⁄₄ = 3

Answer: x = 12
3. Geometry

Adjacent = 20cm, hypotenuse = 30cm. Find the angle

Answer: 48.2°
4. Ratio

Simplify: 9:15:18

Answer: 3:5:6
5. Statistics

Find the range of: 21, 29, 13, -15, 4

Answer: 44

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