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Cornerstone · Grades 3–5 Keystones #1 17 November 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 17 November 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄4 + 3⁄6

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

    Solve: 5x + 12 = 32

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Share 68 in the ratio 1:3

    Answer: 17 and 51
  5. 5. Statistics Mean

    Find the mean of: 6, 13, 9, 18, 4

    Answer: 10

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