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Cornerstone · Grades 3–5 Keystones #1 22 July 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 22 July 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄5 + 3⁄5

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

    Solve: 6x + 9 = 69

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

    Calculate the hypotenuse when a = 10cm and b = 4cm

    Answer: 10.77cm
  4. 4. Ratio Sharing in a ratio

    Divide 203 in the ratio 1:4:2

    Answer: 29, 116 and 58
  5. 5. Statistics Mean

    Calculate the mean of: 13, 43, 19, 16, 6, 15, 28, 36

    Answer: 22

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