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Cornerstone · Grades 3–5 Keystones #1 8 May 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 8 May 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄8 + 2⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 6x + 8 = 50

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio Sharing in a ratio

    Divide 150 in the ratio 4:3:3

    Answer: 60, 45 and 45
  5. 5. Statistics Mean

    Find the mean of: 20, 7, 12

    Answer: 13

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