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Cornerstone · Grades 3–5 Keystones #1 13 January 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 13 January 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄11 + 6⁄11

    Answer: 7⁄11
  2. 2. Algebra Two-step equations

    Solve: 5x + 4 = 59

    Answer: x = 11
  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 144 in the ratio 4:2:3

    Answer: 64, 32 and 48
  5. 5. Statistics Mean

    Find the mean of: 14, 5, 14, 12

    Answer: 11.25

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