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Cornerstone · Grades 3–5 Keystones #1 13 April 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 13 April 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄12 + 3⁄12

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

    Solve: 3x + 5 = 35

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Divide 100 in the ratio 2:1:2

    Answer: 40, 20 and 40
  5. 5. Statistics Mean

    Find the mean of: 4, 6, 20

    Answer: 10

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