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Cornerstone · Grades 3–5 Keystones #1 7 October 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 7 October 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄8 + 2⁄8

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

    Solve: 6x + 15 = 45

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 12.53cm
  4. 4. Ratio Sharing in a ratio

    Share 96 in the ratio 1:2

    Answer: 32 and 64
  5. 5. Statistics Mean

    Find the mean of: 7, 7, 4, 8, 14

    Answer: 8

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