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3.25乘以1.8列竖式计算怎么列

(1)28×3÷25%,=84÷25%,=336,答:这个数是336;(2)(3.2-1.8)÷(0.45+0.25),=1.4÷0.7,=2,答:商是2;(3)360÷25+360×25,=900+144,=1044,答:甲、乙两数的和是1044.

0.37×0.4=0.148,1.06×25=26.5,27×0.43=11.61,0.6×0.39=0.234,1.7×0.86=1.462,1.8×2.3=4.14,2.07×53=109.71,0.015×2.4=0.036,3.4×1.6=5.44,1.08×5.2=5.616,1.25×3.6=4.5,3.75×0.24=0.9.

0.6×2.25÷(3.2-1.8)≈0.96

①(18×56)÷(14×12)=15÷3,=5.答:商是5.②1.8÷(12-13)=1.8÷16,=10.8.答:这个数是10.8.③25÷25%×45.=100×45,=80.答:这个数的45是80.

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