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Cornerstone · Grades 3–5 Keystones #1 19 January 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 19 January 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄6 + 2⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 2x - 8 = 16

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio Sharing in a ratio

    Divide 150 in the ratio 1:3:2

    Answer: 25, 75 and 50
  5. 5. Statistics Mean

    Find the mean of: 14, 18, 4

    Answer: 12

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