Keystones Lintel — 27 July 2026

Keystones — Lintel

Five GCSE retrieval questions · 27 July 2026 · mathsvault.uk/keystones

1. Number Multiplying in standard form

Multiply: 9.4 × 10⁷ × 5.4 × 10³

Answer: 5.08 × 10¹¹
2. Algebra Solving monic quadratics

Solve: x² -2x - 15 = 0

Answer: x = 5 or x = -3
3. Geometry SOHCAHTOA — missing angle

Opposite = 14cm, adjacent = 12cm. Calculate the angle

Answer: 49.4°
4. Ratio Reverse percentages

After a 18% decrease, a value is 283.72. What was the original?

Answer: 346
5. Statistics Range

Calculate the range of: 118, 46, 85, 104, 112, 86

Answer: 72

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.