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Cornerstone · Grades 3–5 Keystones #1 26 January 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 26 January 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 1⁄6

    Answer: 1⁄2
  2. 2. Algebra Two-step equations

    Solve: 4x + 10 = 42

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Divide 110 in the ratio 2:1:2

    Answer: 44, 22 and 44
  5. 5. Statistics Mean

    Find the mean of: 10, 7, 15, 4

    Answer: 9

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