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Cornerstone · Grades 3–5 Keystones #1 3 May 2017 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 3 May 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄5 + 1⁄5

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 2x + 15 = 33

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio Sharing in a ratio

    Divide 180 in the ratio 3:2:4

    Answer: 60, 40 and 80
  5. 5. Statistics Mean

    Find the mean of: 11, 3, 19

    Answer: 11

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