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Cornerstone · Grades 3–5 Keystones #1 8 November 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 8 November 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄11 + 5⁄11

    Answer: 6⁄11
  2. 2. Algebra Two-step equations

    Solve: 3x - 7 = 17

    Answer: x = 8
  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 242 in the ratio 3:4:4

    Answer: 66, 88 and 88
  5. 5. Statistics Mean

    Find the mean of: 7, 15, 17, 19, 7

    Answer: 13

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