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

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

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 2⁄6

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 8x - 7 = 73

    Answer: x = 10
  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 220 in the ratio 3:4:4

    Answer: 60, 80 and 80
  5. 5. Statistics Mean

    Find the mean of: 3, 7, 13, 9

    Answer: 8

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