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Cornerstone · Grades 3–5 Keystones #1 9 June 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 9 June 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄6 + 3⁄4

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

    Solve: 8x - 7 = 41

    Answer: x = 6
  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 189 in the ratio 2:4:3

    Answer: 42, 84 and 63
  5. 5. Statistics Mean

    Find the mean of: 11, 20, 4

    Answer: 11.666666666667

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