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Cornerstone · Grades 3–5 Keystones #1 25 July 2015 Skills week 1 of 7
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Five GCSE retrieval questions · 25 July 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄8 + 2⁄8

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

    Solve: 3x + 8 = 44

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 15.3cm
  4. 4. Ratio Sharing in a ratio

    Divide 110 in the ratio 2:2:1

    Answer: 44, 44 and 22
  5. 5. Statistics Mean

    Find the mean of: 3, 2, 16, 3

    Answer: 6

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