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Cornerstone · Grades 3–5 Keystones #1 12 January 2017 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 12 January 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄7 + 3⁄8

    Answer: 37⁄56
  2. 2. Algebra Two-step equations

    Solve: 6x - 16 = 32

    Answer: x = 8
  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 126 in the ratio 3:2:2

    Answer: 54, 36 and 36
  5. 5. Statistics Mean

    Find the mean of: 17, 14, 7, 6

    Answer: 11

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