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Cornerstone · Grades 3–5 Keystones #1 24 June 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 24 June 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 7⁄8 + 3⁄5

    Answer: 59⁄40
  2. 2. Algebra Two-step equations

    Solve: 2x + 13 = 23

    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 196 in the ratio 3:1:3

    Answer: 84, 28 and 84
  5. 5. Statistics Mean

    Calculate the mean of: 26, 42, 26, 38, 7, 49

    Answer: 31.3

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