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Cornerstone · Grades 3–5 Keystones #1 20 April 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 20 April 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄12 + 5⁄12

    Answer: 11⁄12
  2. 2. Algebra Two-step equations

    Solve: 3x - 16 = 17

    Answer: x = 11
  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 30 in the ratio 2:3

    Answer: 12 and 18
  5. 5. Statistics Mean

    Find the mean of: 12, 2, 4, 4, 14

    Answer: 7.2

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