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Cornerstone · Grades 3–5 Keystones #1 4 August 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 August 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄7 + 7⁄8

    Answer: 81⁄56
  2. 2. Algebra Two-step equations

    Solve: 5x - 12 = 13

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio Sharing in a ratio

    Share 30 in the ratio 1:2

    Answer: 10 and 20
  5. 5. Statistics Mean

    Find the mean of: 18, 14, 5, 14

    Answer: 12.75

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