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Cornerstone · Grades 3–5 Keystones #1 20 April 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 20 April 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄6 + 1⁄6

    Answer: 1⁄3
  2. 2. Algebra Two-step equations

    Solve: 7x - 17 = 74

    Answer: x = 13
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Divide 99 in the ratio 1:4:4

    Answer: 11, 44 and 44
  5. 5. Statistics Mean

    Find the mean of: 9, 9, 16, 2

    Answer: 9

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