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Cornerstone · Grades 3–5 Keystones #1 8 April 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 8 April 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄7 + 2⁄7

    Answer: 5⁄7
  2. 2. Algebra Two-step equations

    Solve: 6x - 6 = 18

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 6cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 7.21cm
  4. 4. Ratio Sharing in a ratio

    Divide 154 in the ratio 2:2:3

    Answer: 44, 44 and 66
  5. 5. Statistics Mean

    Calculate the mean of: 30, 45, 49, 24, 10, 30. Give your answer to 2 decimal places

    Answer: 31.33