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Cornerstone · Grades 3–5 Keystones #1 30 December 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 30 December 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 5x + 6 = 56

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio Sharing in a ratio

    Share 24 in the ratio 1:3

    Answer: 6 and 18
  5. 5. Statistics Mean

    Find the mean of: 19, 6, 8

    Answer: 11

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