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Cornerstone · Grades 3–5 Keystones #1 29 March 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 29 March 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄7 + 4⁄8

    Answer: 13⁄14
  2. 2. Algebra Two-step equations

    Solve: 7x - 12 = 79

    Answer: x = 13
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 14cm

    Answer: 17.2cm
  4. 4. Ratio Sharing in a ratio

    Divide 190 in the ratio 1:2:2

    Answer: 38, 76 and 76
  5. 5. Statistics Mean

    Find the mean of: 3, 6, 6

    Answer: 5

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