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Cornerstone · Grades 3–5 Keystones #1 11 July 2013 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 11 July 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄8 + 2⁄8

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

    Solve: 4x + 3 = 31

    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 144 in the ratio 2:3:4

    Answer: 32, 48 and 64
  5. 5. Statistics Mean

    Find the mean of: 7, 12, 20

    Answer: 13

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