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Cornerstone · Grades 3–5 Keystones #1 30 October 2019 Skills week 1 of 7
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Five GCSE retrieval questions · 30 October 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄4 + 6⁄8

    Answer: 5⁄4
  2. 2. Algebra Two-step equations

    Solve: 4x - 14 = 26

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

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio Sharing in a ratio

    Share 44 in the ratio 3:1

    Answer: 33 and 11
  5. 5. Statistics Mean

    Find the mean of: 13, 6, 19

    Answer: 12.666666666667

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