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Cornerstone · Grades 3–5 Keystones #1 17 April 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 17 April 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄12 + 2⁄12

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

    Solve: 5x + 8 = 68

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio Sharing in a ratio

    Share 91 in the ratio 3:4

    Answer: 39 and 52
  5. 5. Statistics Mean

    Find the mean of: 2, 14, 8

    Answer: 8

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