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Cornerstone · Grades 3–5 Keystones #1 12 March 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 12 March 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄6 + 6⁄8

    Answer: 17⁄12
  2. 2. Algebra Two-step equations

    Solve: 7x + 14 = 42

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio Sharing in a ratio

    Divide 112 in the ratio 2:3:2

    Answer: 32, 48 and 32
  5. 5. Statistics Mean

    Find the mean of: 11, 14, 16, 13

    Answer: 13.5

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