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Cornerstone · Grades 3–5 Keystones #1 23 June 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 June 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄6 + 1⁄4

    Answer: 7⁄12
  2. 2. Algebra Two-step equations

    Solve: 2x + 4 = 12

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Divide 200 in the ratio 3:3:4

    Answer: 60, 60 and 80
  5. 5. Statistics Mean

    Find the mean of: 20, 2, 9, 12

    Answer: 10.75

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