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Cornerstone · Grades 3–5 Keystones #1 19 December 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 19 December 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄5 + 2⁄8

    Answer: 17⁄20
  2. 2. Algebra Two-step equations

    Solve: 8x - 8 = 32

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

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio Sharing in a ratio

    Divide 91 in the ratio 2:2:3

    Answer: 26, 26 and 39
  5. 5. Statistics Mean

    Find the mean of: 10, 19, 7, 12

    Answer: 12

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