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Cornerstone · Grades 3–5 Keystones #1 9 April 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 9 April 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄7 + 1⁄8

    Answer: 31⁄56
  2. 2. Algebra Two-step equations

    Solve: 5x + 11 = 66

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

    Calculate the hypotenuse when a = 11cm and b = 12cm

    Answer: 16.28cm
  4. 4. Ratio Sharing in a ratio

    Divide 100 in the ratio 1:2:1

    Answer: 25, 50 and 25
  5. 5. Statistics Mean

    Find the mean of: 18, 4, 5

    Answer: 9

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