2.4×0.37+0.24×5.6+0.024×7用简便运算怎么算?
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2.4×0.37+0.24×5.6+0.024×7
=2.4×0.37+2.4×0.56+2.4×0.07
=2.4×(0.37+0.56+0.07)
=2.4×1
=2.4
=2.4×0.37+2.4×0.56+2.4×0.07
=2.4×(0.37+0.56+0.07)
=2.4×1
=2.4
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