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

Five GCSE retrieval questions · 5 June 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄8 + 5⁄6

    Answer: 35⁄24
  2. 2. Algebra Two-step equations

    Solve: 8x - 17 = 63

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio Sharing in a ratio

    Divide 133 in the ratio 4:1:2

    Answer: 76, 19 and 38
  5. 5. Statistics Mean

    Find the mean of: 15, 12, 3, 10

    Answer: 10

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