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Cornerstone · Grades 3–5 Keystones #1 27 March 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 27 March 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄8 + 4⁄7

    Answer: 23⁄28
  2. 2. Algebra Two-step equations

    Solve: 4x + 14 = 58

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

    Calculate the hypotenuse when a = 6cm and b = 10cm

    Answer: 11.66cm
  4. 4. Ratio Sharing in a ratio

    Divide 240 in the ratio 3:3:4

    Answer: 72, 72 and 96
  5. 5. Statistics Mean

    Calculate the mean of: 45, 44, 29, 20, 6, 41, 21

    Answer: 29.4

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