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Cornerstone · Grades 3–5 Keystones #1 23 May 2020 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 May 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄6 + 2⁄5

    Answer: 37⁄30
  2. 2. Algebra Two-step equations

    Solve: 5x + 4 = 34

    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

    Share 119 in the ratio 4:3

    Answer: 68 and 51
  5. 5. Statistics Mean

    Calculate the mean of: 36, 30, 50, 26, 40, 17

    Answer: 33.2

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