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Cornerstone · Grades 3–5 Keystones #1 25 May 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 25 May 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 7⁄8 + 4⁄6

    Answer: 37⁄24
  2. 2. Algebra Two-step equations

    Solve: 4x - 19 = 17

    Answer: x = 9
  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 102 in the ratio 1:2

    Answer: 34 and 68
  5. 5. Statistics Mean

    Calculate the mean of: 44, 45, 28, 29, 42, 22, 20, 22

    Answer: 31.5

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