解
-3.14x35.2+6.28x(-23.2)-1.57x36.8
=-3.14x35.2+3.14x(-46.4)-3.14x18.4
=3.14x(-35.2-46.4-18.4)
=3.14x(-100)
=-314
希望能帮助你,数学辅导团为您解答,不理解请追问,理解请及时采纳!(*^__^*)
-3.14x35.2+6.28x(-23.2)-1.57x36.8
=-3.14×35.2-3.14×46.4-3.14×18.9
=-3.14×(35.2+46.4+18.9)
=-3.14×100.5
=-3.14×(100+0.5)
=-314-1.57
=315.57
解:﹣3.14×35.2+6.28×﹙﹣23.2﹚-1.57×36.8
=﹣3.14×﹙35.2+46.4+18.4﹚
=﹣3.14×100
=﹣314