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Cornerstone · Grades 3–5 Keystones #1 24 June 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 24 June 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄10 + 2⁄10

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

    Solve: 6x + 5 = 29

    Answer: x = 4
  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 147 in the ratio 4:2:1

    Answer: 84, 42 and 21
  5. 5. Statistics Mean

    Find the mean of: 20, 3, 13

    Answer: 12

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