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Mackenzie Hodges
Mathematics
16 July, 18:37
What is 54.3 - 19.74 using mental math
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Cassandra Harmon
16 July, 18:45
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The answer is 34.56 using mental math.
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Valerie Young
16 July, 19:05
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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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