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Cornerstone · Grades 3–5 Keystones #1 23 June 2012 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 June 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄6 + 3⁄4

    Answer: 19⁄12
  2. 2. Algebra Two-step equations

    Solve: 4x - 10 = 10

    Answer: x = 5
  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 1:2:1

    Answer: 56, 112 and 56
  5. 5. Statistics Mean

    Find the mean of: 5, 8, 4, 7

    Answer: 6

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