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Cornerstone · Grades 3–5 Keystones #1 11 March 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 11 March 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄11 + 7⁄11

    Answer: 9⁄11
  2. 2. Algebra Two-step equations

    Solve: 7x + 9 = 86

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 15cm

    Answer: 15.3cm
  4. 4. Ratio Sharing in a ratio

    Divide 120 in the ratio 2:3:1

    Answer: 40, 60 and 20
  5. 5. Statistics Mean

    Find the mean of: 16, 13, 17, 18

    Answer: 16

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