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Cornerstone · Grades 3–5 Keystones #1 1 January 2023 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 1 January 2023 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄8 + 3⁄8

    Answer: 5⁄8
  2. 2. Algebra Two-step equations

    Solve: 5x + 7 = 32

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

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio Sharing in a ratio

    Share 20 in the ratio 1:3

    Answer: 5 and 15
  5. 5. Statistics Mean

    Calculate the mean of: 29, 49, 32, 50, 29, 26

    Answer: 35.8

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