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Cornerstone · Grades 3–5 Keystones #1 15 April 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 15 April 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄4 + 1⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 3x - 20 = 13

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

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Share 50 in the ratio 2:3

    Answer: 20 and 30
  5. 5. Statistics Mean

    Find the mean of: 2, 6, 6

    Answer: 4.6666666666667

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