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Cornerstone · Grades 3–5 Keystones #1 18 March 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 18 March 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄6 + 1⁄3

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 5x - 20 = 5

    Answer: x = 5
  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 48 in the ratio 1:3

    Answer: 12 and 36
  5. 5. Statistics Mean

    Find the mean of: 16, 11, 6, 11, 11

    Answer: 11

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