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Cornerstone · Grades 3–5 Keystones #1 1 February 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 1 February 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 5x + 6 = 46

    Answer: x = 8
  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 171 in the ratio 4:3:2

    Answer: 76, 57 and 38
  5. 5. Statistics Mean

    Find the mean of: 12, 8, 11, 25

    Answer: 14

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