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Cornerstone · Grades 3–5 Keystones #1 3 June 2013 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 3 June 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 6⁄8 + 1⁄4

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

    Solve: 8x - 7 = 57

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio Sharing in a ratio

    Divide 198 in the ratio 2:4:3

    Answer: 44, 88 and 66
  5. 5. Statistics Mean

    Calculate the mean of: 35, 38, 12, 37, 17, 36, 28

    Answer: 29

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