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1.78X9.9+0.178简便计算

1.78X9.9+0.178简便计算=1.78x9.9+1.78x0.1=1.78x(9.9+0.1)=1.78x10=17.8

1.78*9.9=1.78*(10-0.1)=17.8-0.178=17.622

1.78x9.9 +17.8简算怎么答解1.78x9.9 +17.8=17.8*0.99+17.8=17.8*(0.99+1)=17.8*(2-0.01)=35.6-0.178=35.422

9.73x9.9+0.973 =9.73x9.9+9.73x0.1 =9.73x(9.9+0.1) =9.73x10 =97.3

1.32x9.9+0.132 =0.132*99+0.132 =0.132*(99+1) =0.132*100 ==13.2

1.67x9.9+0.167用简便方计算1.67x9.9+0.167=1.67*9.9+1.67*0.1=1.67*(9.9+0.1)=1.67*10=16.7

1.87x9.9+0.187=1.87x9.9+1.87x0.1=1.87x(9.9+0.1)=18.7

=2.34*9.9+2.34*0.1=2.34*(9.9+0.1)=2.34*10=23.4

原式=1.32*9.9+1.32*0.1=1.32*(9.9+0.1)=1.32*10=13.2~一刻永远523为你解答,祝你学习进步~~~~如果你认可我的回答,请及时点击右下角的【采纳为满意回答】按钮~~你的采纳是我前进的动力~~~如还有新的问题,请另外向我求助,答题不易,敬请谅解~~

原式= 1.78*(10-0.1) +1.78= 1.78*10 -1.78*0.1 +1.78= 17.8 + 1.78 - 0.178= 19.58 -0.178= 19.402 ~ 满意请采纳,不清楚请追问.梳理知识,帮助别人,愉悦自己.

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