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Cornerstone · Grades 3–5 Keystones #1 19 August 2019 Skills week 1 of 7
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Five GCSE retrieval questions · 19 August 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄7 + 1⁄7

    Answer: 4⁄7
  2. 2. Algebra Two-step equations

    Solve: 5x - 16 = 44

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Divide 290 in the ratio 3:3:4

    Answer: 87, 87 and 116
  5. 5. Statistics Mean

    Find the mean of: 20, 2, 18

    Answer: 13.333333333333

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