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Cornerstone · Grades 3–5 Keystones #1 27 April 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 27 April 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄8 + 1⁄8

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 3x - 18 = -3

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

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

    Answer: 5.66cm
  4. 4. Ratio Sharing in a ratio

    Divide 243 in the ratio 4:4:1

    Answer: 108, 108 and 27
  5. 5. Statistics Mean

    Find the mean of: 11, 10, 24

    Answer: 15

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