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

  1. 1. Number Adding fractions

    Calculate: 1⁄10 + 2⁄10

    Answer: 3⁄10
  2. 2. Algebra Two-step equations

    Solve: 6x + 4 = 34

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 13cm

    Answer: 15.26cm
  4. 4. Ratio Sharing in a ratio

    Divide 135 in the ratio 2:3:4

    Answer: 30, 45 and 60
  5. 5. Statistics Mean

    Find the mean of: 7, 18, 13, 7

    Answer: 11.25

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