48x0.56+44x0.48用简便方法怎么做
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原式=
48x0.56+0.44x100x0.48
=48x0.56+0.44x48
=48x(0.56+0.44)
=48x1
=48
或者
=0.48x100x0.56+44x0.48
=0.48x56+44x0.48
=0.48x(56+44)
=0.48x100
=48
48x0.56+0.44x100x0.48
=48x0.56+0.44x48
=48x(0.56+0.44)
=48x1
=48
或者
=0.48x100x0.56+44x0.48
=0.48x56+44x0.48
=0.48x(56+44)
=0.48x100
=48
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