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Cornerstone · Grades 3–5 Keystones #1 2 April 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 April 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 1⁄4

    Answer: 7⁄12
  2. 2. Algebra Two-step equations

    Solve: 5x + 6 = 46

    Answer: x = 8
  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

    Divide 96 in the ratio 1:1:4

    Answer: 16, 16 and 64
  5. 5. Statistics Mean

    Find the mean of: 7, 6, 3, 20

    Answer: 9

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