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Cornerstone · Grades 3–5 Keystones #1 16 August 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 16 August 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 3⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 2x - 11 = 19

    Answer: x = 15
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio Sharing in a ratio

    Divide 140 in the ratio 1:3:3

    Answer: 20, 60 and 60
  5. 5. Statistics Mean

    Find the mean of: 8, 8, 16, 2, 20

    Answer: 10.8

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