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Cornerstone · Grades 3–5 Keystones #1 2 April 2020 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 April 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄4 + 6⁄8

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

    Solve: 5x - 14 = 56

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

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

    Answer: 9.9cm
  4. 4. Ratio Sharing in a ratio

    Divide 196 in the ratio 2:4:1

    Answer: 56, 112 and 28
  5. 5. Statistics Mean

    Calculate the mean of: 5, 16, 24, 21, 19, 12, 38, 27

    Answer: 20.3

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