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Cornerstone · Grades 3–5 Keystones #1 30 January 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 30 January 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄5 + 1⁄4

    Answer: 21⁄20
  2. 2. Algebra Two-step equations

    Solve: 5x + 4 = 59

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 15cm and 20cm

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

    Divide 290 in the ratio 2:1:2

    Answer: 116, 58 and 116
  5. 5. Statistics Mean

    Find the mean of: 5, 6, 14, 6, 24

    Answer: 11

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