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

Five GCSE retrieval questions · 5 April 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄3 + 4⁄7

    Answer: 26⁄21
  2. 2. Algebra Two-step equations

    Solve: 3x + 13 = 43

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Divide 140 in the ratio 4:3:3

    Answer: 56, 42 and 42
  5. 5. Statistics Mean

    Find the mean of: 6, 2, 7, 9, 13

    Answer: 7.4

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