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Cornerstone · Grades 3–5 Keystones #1 9 April 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 9 April 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄8 + 2⁄8

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 6x + 13 = 73

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

    Calculate the hypotenuse when a = 4cm and b = 8cm

    Answer: 8.94cm
  4. 4. Ratio Sharing in a ratio

    Divide 171 in the ratio 4:3:2

    Answer: 76, 57 and 38
  5. 5. Statistics Mean

    Calculate the mean of: 35, 42, 6, 47, 12, 49, 30, 46

    Answer: 33.4

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