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Cornerstone · Grades 3–5 Keystones #1 21 July 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 21 July 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄4 + 4⁄8

    Answer: 5⁄4
  2. 2. Algebra Two-step equations

    Solve: 3x + 13 = 25

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

    Calculate the hypotenuse when a = 10cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 14.87cm
  4. 4. Ratio Sharing in a ratio

    Divide 270 in the ratio 4:2:3

    Answer: 120, 60 and 90
  5. 5. Statistics Mean

    Find the mean of: 11, 2, 14

    Answer: 9

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