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Cornerstone · Grades 3–5 Keystones #1 4 March 2017 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 March 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 1⁄6

    Answer: 1⁄2
  2. 2. Algebra Two-step equations

    Solve: 5x + 11 = 56

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio Sharing in a ratio

    Divide 120 in the ratio 1:2:1

    Answer: 30, 60 and 30
  5. 5. Statistics Mean

    Find the mean of: 9, 11, 13, 11

    Answer: 11

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