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Cornerstone · Grades 3–5 Keystones #1 30 April 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 30 April 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄8 + 1⁄8

    Answer: 1⁄2
  2. 2. Algebra Two-step equations

    Solve: 7x + 12 = 82

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

    Calculate the hypotenuse when a = 9cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 12.73cm
  4. 4. Ratio Sharing in a ratio

    Divide 112 in the ratio 3:1:4

    Answer: 42, 14 and 56
  5. 5. Statistics Mean

    Calculate the mean of: 35, 14, 15, 13, 26, 27, 43, 23

    Answer: 24.5

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