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

  1. 1. Number Adding fractions

    Calculate: 5⁄8 + 2⁄8

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

    Solve: 3x - 8 = 16

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 7cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 9.9cm
  4. 4. Ratio Sharing in a ratio

    Divide 95 in the ratio 2:2:1

    Answer: 38, 38 and 19
  5. 5. Statistics Mean

    Find the mean of: 7, 11, 11, 19

    Answer: 12

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