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Cornerstone · Grades 3–5 Keystones #1 23 February 2017 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 February 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄7 + 2⁄7

    Answer: 6⁄7
  2. 2. Algebra Two-step equations

    Solve: 6x - 17 = 61

    Answer: x = 13
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Divide 144 in the ratio 1:2:3

    Answer: 24, 48 and 72
  5. 5. Statistics Mean

    Find the mean of: 10, 4, 10

    Answer: 8

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