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Cornerstone · Grades 3–5 Keystones #1 4 March 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 4 March 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄7 + 1⁄7

    Answer: 6⁄7
  2. 2. Algebra Two-step equations

    Solve: 6x + 4 = 34

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

    Calculate the hypotenuse when a = 7cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 15.65cm
  4. 4. Ratio Sharing in a ratio

    Divide 203 in the ratio 3:2:2

    Answer: 87, 58 and 58
  5. 5. Statistics Mean

    Find the mean of: 3, 18, 12

    Answer: 11

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