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Cornerstone · Grades 3–5 Keystones #1 29 April 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 29 April 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄8 + 2⁄8

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

    Solve: 6x + 12 = 72

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 14.42cm
  4. 4. Ratio Sharing in a ratio

    Share 80 in the ratio 4:1

    Answer: 64 and 16
  5. 5. Statistics Mean

    Find the mean of: 9, 9, 7, 15

    Answer: 10

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