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Cornerstone · Grades 3–5 Keystones #1 2 October 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 October 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 8⁄10 + 1⁄10

    Answer: 9⁄10
  2. 2. Algebra Two-step equations

    Solve: 3x - 5 = 31

    Answer: x = 12
  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 96 in the ratio 3:2:3

    Answer: 36, 24 and 36
  5. 5. Statistics Mean

    Find the mean of: 7, 6, 20

    Answer: 11

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