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Cornerstone · Grades 3–5 Keystones #1 16 April 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 16 April 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄8 + 3⁄8

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

    Solve: 4x - 18 = 38

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio Sharing in a ratio

    Share 49 in the ratio 3:4

    Answer: 21 and 28
  5. 5. Statistics Mean

    Find the mean of: 22, 8, 12, 2

    Answer: 11

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