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Cornerstone · Grades 3–5 Keystones #1 14 April 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 14 April 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄8 + 3⁄8

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

    Solve: 6x + 14 = 74

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

    Calculate the hypotenuse when a = 7cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 10.63cm
  4. 4. Ratio Sharing in a ratio

    Divide 225 in the ratio 4:2:3

    Answer: 100, 50 and 75
  5. 5. Statistics Mean

    Find the mean of: 3, 19, 11

    Answer: 11

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