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Today's Keystones

Five retrieval questions for today — one from each strand. Choose your tier, then have a go. New set at midnight UK time.

Bedrock Cornerstone Lintel Capstone
Lintel · Grades 5–7 Keystones #72 26 August 2026 (today)

Keystones — Lintel

Five GCSE retrieval questions · 26 August 2026

  1. 1. Number

    Find the total of 279, 213, and 68

    Answer: 560
  2. 2. Algebra

    Factorise: 4x² + 3x

    Answer: x(4x + 3)
  3. 3. Geometry

    Adjacent = 22cm, hypotenuse = 35cm. Find the angle

    Answer: 51.1°
  4. 4. Ratio

    Calculate 45.9% of 771

    Answer: 353.89
  5. 5. Statistics

    Find the range of: -23, 0, 30, 23, -4

    Answer: 53