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Cornerstone · Grades 3–5 Keystones #1 4 June 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 June 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 6⁄7 + 2⁄4

    Answer: 19⁄14
  2. 2. Algebra Two-step equations

    Solve: 7x + 14 = 84

    Answer: x = 10
  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 104 in the ratio 3:2:3

    Answer: 39, 26 and 39
  5. 5. Statistics Mean

    Calculate the mean of: 9, 13, 32, 26, 6, 46

    Answer: 22

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