1.82+18.2乘以0.9怎么简便
1.82+18.2乘以0.9
=18.2*0.1+18.2*0.9
=18.2*(0.1+0.9)
=18.2*1
=18.2
1.82+18.2*0.9
=1.82+1.82*9
=1.82*(1+9)
=1.82*10
=18.2
1.82+18.2×0.9
=18.2×0.1+18.2×0.9
=18.2×(0.1+0.9)
=18.2
1.82+18.2X0.9
=1.82+1.82X10X0.9
=1.82X(1+9)
=1.82X10
=18.2
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