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Cornerstone · Grades 3–5 Keystones #1 23 February 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 February 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄5 + 2⁄3

    Answer: 19⁄15
  2. 2. Algebra Two-step equations

    Solve: 4x - 11 = 45

    Answer: x = 14
  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 180 in the ratio 1:1:4

    Answer: 30, 30 and 120
  5. 5. Statistics Mean

    Find the mean of: 13, 12, 8

    Answer: 11

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