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Cornerstone · Grades 3–5 Keystones #1 10 April 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 10 April 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄7 + 2⁄4

    Answer: 15⁄14
  2. 2. Algebra Two-step equations

    Solve: 3x + 9 = 33

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Divide 176 in the ratio 1:2:1

    Answer: 44, 88 and 44
  5. 5. Statistics Mean

    Find the mean of: 3, 12, 15, 14

    Answer: 11

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