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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
Bedrock · Grades 1–3 Keystones #72 26 August 2026 (today)

Keystones — Bedrock

Five GCSE retrieval questions · 26 August 2026

  1. 1. Number

    Calculate: 23 + 49

    Answer: 23 + 49 = 72
  2. 2. Algebra

    Simplify: 6x + 6x

    Answer: 12x
  3. 3. Geometry

    Opposite = 6cm, hypotenuse = 8.5cm. Find the angle

    Answer: 45° (approximately)
  4. 4. Ratio

    Calculate 25% of 66

    Answer: 16.5
  5. 5. Statistics

    Find the mean of: 20, 9, 4

    Answer: 11