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Cornerstone · Grades 3–5 Keystones #1 28 January 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 28 January 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄8 + 2⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 5x - 13 = 17

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 6cm and b = 8cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Divide 216 in the ratio 3:2:4

    Answer: 72, 48 and 96
  5. 5. Statistics Mean

    Calculate the mean of: 32, 20, 41, 48, 37, 7, 13, 29. Give your answer to 2 decimal places

    Answer: 28.38

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