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Cornerstone · Grades 3–5 Keystones #1 23 May 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 May 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄4 + 7⁄8

    Answer: 9⁄8
  2. 2. Algebra Two-step equations

    Solve: 2x + 11 = 33

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 15cm

    Answer: 19.21cm
  4. 4. Ratio Sharing in a ratio

    Divide 138 in the ratio 3:1:2

    Answer: 69, 23 and 46
  5. 5. Statistics Mean

    Find the mean of: 19, 14, 17

    Answer: 16.666666666667

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