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Cornerstone · Grades 3–5 Keystones #1 30 March 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 30 March 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄9 + 3⁄9

    Answer: 7⁄9
  2. 2. Algebra Two-step equations

    Solve: 5x - 16 = 14

    Answer: x = 6
  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 75 in the ratio 3:1:1

    Answer: 45, 15 and 15
  5. 5. Statistics Mean

    Calculate the mean of: 38, 45, 23, 17, 23, 41, 46

    Answer: 33.3

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