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Cornerstone · Grades 3–5 Keystones #1 9 August 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 9 August 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 2⁄6

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 3x + 12 = 45

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 15cm and 20cm

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

    Share 84 in the ratio 3:4

    Answer: 36 and 48
  5. 5. Statistics Mean

    Find the mean of: 12, 8, 3

    Answer: 7.6666666666667

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