怎么简便就怎么算。 怎么算怎么算
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38.08÷13.6*0.72
=（40.8-2.72）÷13.6×0.72
=40.8÷13.6×0.72-2.72÷13.6×0.72
=3×0.72-0.2×0.72
=（3-0.2）×0.72
=2.8×0.72
=2.016
4.07×8.6+9.125
=（4+0.07）×8.6+9.125
=4×8.6+0.7×8.6+9.125
=34.4+0.602+9.125
=35.002+9.125
=44.127
=（40.8-2.72）÷13.6×0.72
=40.8÷13.6×0.72-2.72÷13.6×0.72
=3×0.72-0.2×0.72
=（3-0.2）×0.72
=2.8×0.72
=2.016
4.07×8.6+9.125
=（4+0.07）×8.6+9.125
=4×8.6+0.7×8.6+9.125
=34.4+0.602+9.125
=35.002+9.125
=44.127
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