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

Five GCSE retrieval questions · 5 August 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄5 + 1⁄8

    Answer: 29⁄40
  2. 2. Algebra Two-step equations

    Solve: 7x + 15 = 43

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

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

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

    Share 95 in the ratio 1:4

    Answer: 19 and 76
  5. 5. Statistics Mean

    Find the mean of: 20, 9, 20

    Answer: 16.333333333333

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