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Cornerstone · Grades 3–5 Keystones #1 19 July 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 19 July 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄7 + 1⁄3

    Answer: 16⁄21
  2. 2. Algebra Two-step equations

    Solve: 8x - 18 = 30

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 15.56cm
  4. 4. Ratio Sharing in a ratio

    Divide 96 in the ratio 1:3:2

    Answer: 16, 48 and 32
  5. 5. Statistics Mean

    Find the mean of: 14, 8, 11

    Answer: 11

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