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Cornerstone · Grades 3–5 Keystones #1 4 November 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 November 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄6 + 2⁄4

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

    Solve: 8x - 19 = 69

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

    Calculate the hypotenuse when a = 11cm and b = 7cm

    Answer: 13.04cm
  4. 4. Ratio Sharing in a ratio

    Divide 120 in the ratio 3:4:3

    Answer: 36, 48 and 36
  5. 5. Statistics Mean

    Find the mean of: 19, 19, 20, 8

    Answer: 16.5

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