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Cornerstone · Grades 3–5 Keystones #1 18 April 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 18 April 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 3⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 5x + 11 = 66

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Share 35 in the ratio 3:2

    Answer: 21 and 14
  5. 5. Statistics Mean

    Find the mean of: 4, 15, 16, 20

    Answer: 13.75

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