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Cornerstone · Grades 3–5 Keystones #1 4 June 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 4 June 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄5 + 2⁄5

    Answer: 3⁄5
  2. 2. Algebra Two-step equations

    Solve: 2x + 9 = 29

    Answer: x = 10
  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 252 in the ratio 1:4:4

    Answer: 28, 112 and 112
  5. 5. Statistics Mean

    Find the mean of: 10, 10, 5, 7

    Answer: 8

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