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Cornerstone · Grades 3–5 Keystones #1 28 April 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 28 April 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 1⁄6

    Answer: 1⁄2
  2. 2. Algebra Two-step equations

    Solve: 7x - 18 = 38

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

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Divide 240 in the ratio 2:1:1

    Answer: 120, 60 and 60
  5. 5. Statistics Mean

    Calculate the mean of: 32, 37, 35, 36, 44, 31, 12, 9

    Answer: 29.5

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