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Cornerstone · Grades 3–5 Keystones #1 15 November 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 15 November 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄7 + 3⁄7

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

    Solve: 8x - 12 = 36

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Share 60 in the ratio 2:1

    Answer: 40 and 20
  5. 5. Statistics Mean

    Find the mean of: 2, 14, 10, 7, 13

    Answer: 9.2

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