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Cornerstone · Grades 3–5 Keystones #1 31 July 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 31 July 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄8 + 2⁄6

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

    Solve: 4x - 18 = 22

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 20cm and 21cm

    Answer: 29cm
  4. 4. Ratio Sharing in a ratio

    Share 65 in the ratio 1:4

    Answer: 13 and 52
  5. 5. Statistics Mean

    Find the mean of: 19, 10, 11

    Answer: 13.333333333333

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