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Cornerstone · Grades 3–5 Keystones #1 26 February 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 26 February 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄11 + 4⁄11

    Answer: 7⁄11
  2. 2. Algebra Two-step equations

    Solve: 6x + 4 = 40

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Share 70 in the ratio 2:3

    Answer: 28 and 42
  5. 5. Statistics Mean

    Find the mean of: 6, 15, 6

    Answer: 9

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