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Cornerstone · Grades 3–5 Keystones #1 25 April 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 25 April 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄8 + 1⁄8

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

    Solve: 2x + 12 = 22

    Answer: x = 5
  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

    Divide 110 in the ratio 2:1:2

    Answer: 44, 22 and 44
  5. 5. Statistics Mean

    Find the mean of: 6, 2, 11, 15

    Answer: 8.5

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