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Cornerstone · Grades 3–5 Keystones #1 5 June 2021 Skills week 1 of 7
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Five GCSE retrieval questions · 5 June 2021 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄9 + 6⁄9

    Answer: 8⁄9
  2. 2. Algebra Two-step equations

    Solve: 2x - 19 = -11

    Answer: x = 4
  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

    Share 65 in the ratio 1:4

    Answer: 13 and 52
  5. 5. Statistics Mean

    Find the mean of: 10, 2, 5

    Answer: 5.6666666666667

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