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Cornerstone · Grades 3–5 Keystones #1 10 November 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 10 November 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄8 + 3⁄8

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

    Solve: 3x + 10 = 25

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

    Calculate the hypotenuse when a = 3cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 6.71cm
  4. 4. Ratio Sharing in a ratio

    Divide 242 in the ratio 4:4:3

    Answer: 88, 88 and 66
  5. 5. Statistics Mean

    Calculate the mean of: 47, 20, 35, 34, 48, 33, 29. Give your answer to 2 decimal places

    Answer: 35.14

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