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Cornerstone · Grades 3–5 Keystones #1 6 March 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 6 March 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄5 + 6⁄7

    Answer: 58⁄35
  2. 2. Algebra Two-step equations

    Solve: 8x - 12 = 28

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 6cm and b = 14cm

    Answer: 15.23cm
  4. 4. Ratio Sharing in a ratio

    Divide 70 in the ratio 3:2:2

    Answer: 30, 20 and 20
  5. 5. Statistics Mean

    Find the mean of: 5, 4, 13, 18

    Answer: 10

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