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Cornerstone · Grades 3–5 Keystones #1 27 March 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 27 March 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 1⁄8

    Answer: 11⁄24
  2. 2. Algebra Two-step equations

    Solve: 7x + 3 = 24

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

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio Sharing in a ratio

    Divide 162 in the ratio 3:2:4

    Answer: 54, 36 and 72
  5. 5. Statistics Mean

    Find the mean of: 17, 5, 18, 10, 2

    Answer: 10.4

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