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Cornerstone · Grades 3–5 Keystones #1 19 July 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 19 July 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 8⁄12 + 3⁄12

    Answer: 11⁄12
  2. 2. Algebra Two-step equations

    Solve: 8x - 5 = 43

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

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio Sharing in a ratio

    Divide 114 in the ratio 1:2:3

    Answer: 19, 38 and 57
  5. 5. Statistics Mean

    Find the mean of: 2, 16, 10

    Answer: 9.3333333333333

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