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Cornerstone · Grades 3–5 Keystones #1 31 May 2020 Skills week 1 of 7
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Five GCSE retrieval questions · 31 May 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 8⁄10 + 1⁄10

    Answer: 9⁄10
  2. 2. Algebra Two-step equations

    Solve: 5x + 14 = 44

    Answer: x = 6
  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 121 in the ratio 4:3:4

    Answer: 44, 33 and 44
  5. 5. Statistics Mean

    Find the mean of: 11, 19, 10, 14

    Answer: 13.5

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