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Cornerstone · Grades 3–5 Keystones #1 27 April 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 27 April 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄10 + 2⁄10

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

    Solve: 4x - 6 = 14

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Divide 96 in the ratio 4:3:1

    Answer: 48, 36 and 12
  5. 5. Statistics Mean

    Calculate the mean of: 10, 12, 39, 11, 41, 28

    Answer: 23.5

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