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Cornerstone · Grades 3–5 Keystones #1 14 May 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 14 May 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄12 + 4⁄12

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

    Solve: 3x - 17 = 4

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Divide 196 in the ratio 2:1:4

    Answer: 56, 28 and 112
  5. 5. Statistics Mean

    Calculate the mean of: 37, 38, 24, 28, 42, 34, 47, 32

    Answer: 35.25

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