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

  1. 1. Number Adding fractions

    Calculate: 1⁄7 + 4⁄7

    Answer: 5⁄7
  2. 2. Algebra Two-step equations

    Solve: 7x + 3 = 59

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 15cm

    Answer: 15.52cm
  4. 4. Ratio Sharing in a ratio

    Divide 121 in the ratio 4:3:4

    Answer: 44, 33 and 44
  5. 5. Statistics Mean

    Find the mean of: 8, 3, 3, 14, 7

    Answer: 7

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