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16 July, 18:37

What is 54.3 - 19.74 using mental math

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Answers (2)
  1. 16 July, 18:45
    0
    The answer is 34.56 using mental math.
  2. 16 July, 19:05
    0
    So I would split like this

    (54.3) - (19.74) =

    (54+0.3) - (19+0.74) =

    54+0.3-19-0.74=

    54-19+0.30-0.74=

    35-0.44=

    34+1-0.44=

    34+0.56=

    34.56
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