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Cornerstone · Grades 3–5 Keystones #1 29 March 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 29 March 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄6 + 1⁄6

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 5x - 13 = 42

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Divide 224 in the ratio 4:1:3

    Answer: 112, 28 and 84
  5. 5. Statistics Mean

    Find the mean of: 4, 12, 2

    Answer: 6

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