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Cornerstone · Grades 3–5 Keystones #1 2 August 2017 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 August 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄6 + 1⁄6

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

    Solve: 7x + 15 = 36

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

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Divide 88 in the ratio 2:1:1

    Answer: 44, 22 and 22
  5. 5. Statistics Mean

    Calculate the mean of: 45, 15, 37, 38, 13, 35

    Answer: 30.5

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