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Cornerstone · Grades 3–5 Keystones #1 4 August 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 August 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄7 + 1⁄4

    Answer: 19⁄28
  2. 2. Algebra Two-step equations

    Solve: 7x - 12 = 44

    Answer: x = 8
  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 96 in the ratio 4:1:3

    Answer: 48, 12 and 36
  5. 5. Statistics Mean

    Find the mean of: 24, 4, 17, 7, 13

    Answer: 13

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