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Cornerstone · Grades 3–5 Keystones #1 11 November 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 11 November 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄4 + 3⁄6

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

    Solve: 4x - 13 = 19

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

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio Sharing in a ratio

    Divide 176 in the ratio 3:3:2

    Answer: 66, 66 and 44
  5. 5. Statistics Mean

    Find the mean of: 17, 6, 2, 19

    Answer: 11

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