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

Five GCSE retrieval questions · 3 July 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 6⁄8 + 1⁄3

    Answer: 13⁄12
  2. 2. Algebra Two-step equations

    Solve: 6x - 12 = 18

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 20cm and 21cm

    Answer: 29cm
  4. 4. Ratio Sharing in a ratio

    Divide 147 in the ratio 2:3:2

    Answer: 42, 63 and 42
  5. 5. Statistics Mean

    Find the mean of: 17, 3, 14

    Answer: 11.333333333333

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