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Cornerstone · Grades 3–5 Keystones #1 10 April 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 10 April 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄7 + 2⁄7

    Answer: 6⁄7
  2. 2. Algebra Two-step equations

    Solve: 2x + 10 = 22

    Answer: x = 6
  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 180 in the ratio 2:4:3

    Answer: 40, 80 and 60
  5. 5. Statistics Mean

    Find the mean of: 17, 18, 8, 2

    Answer: 11.25

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