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Cornerstone · Grades 3–5 Keystones #1 2 February 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 February 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄3 + 6⁄7

    Answer: 32⁄21
  2. 2. Algebra Two-step equations

    Solve: 4x + 15 = 47

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio Sharing in a ratio

    Divide 136 in the ratio 1:4:3

    Answer: 17, 68 and 51
  5. 5. Statistics Mean

    Find the mean of: 11, 13, 9

    Answer: 11

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