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Cornerstone · Grades 3–5 Keystones #1 8 June 2021 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 8 June 2021 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄8 + 3⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 4x + 11 = 27

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio Sharing in a ratio

    Share 133 in the ratio 4:3

    Answer: 76 and 57
  5. 5. Statistics Mean

    Calculate the mean of: 21, 24, 28, 27, 41, 15, 38

    Answer: 27.7

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