简便计算 77×29.08÷77 101×0.79 91-10÷0.25÷0.4 402-298 2.5×12.5×3.2 7.8÷13+7.8×12/13

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简便计算77×29.08÷77101×0.7991-10÷0.25÷0.4402-2982.5×12.5×3.27.8÷13+7.8×12/13简便计算77×29.08÷77101×0.7991-10

简便计算 77×29.08÷77 101×0.79 91-10÷0.25÷0.4 402-298 2.5×12.5×3.2 7.8÷13+7.8×12/13
简便计算 77×29.08÷77 101×0.79 91-10÷0.25÷0.4 402-298 2.5×12.5×3.2 7.8÷13+7.8×12/13

简便计算 77×29.08÷77 101×0.79 91-10÷0.25÷0.4 402-298 2.5×12.5×3.2 7.8÷13+7.8×12/13
1.77/77*29.08=29.08
2.100*0.79+0.79*1=79.79
3.91-10/(0.25*0.4)=91-10/0.1=-9
4.402-298*(2.5*0.4)*(12.5*8)=-29398
5.7.8*(1/13+12/13)=7.8

77×29.08÷77=77÷77×29.08=1×29.08=29.08
101×0.79=(100+1)×0.79=100×0.79+1×0.79=79+0.79=79.79
91-10÷0.25÷0.4=91-10÷[(1/4)×(4/10)]=91-10÷(1/10)=91-10×10=91-100=-9
402-298=(400+2)-(300-2)=400-3...

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77×29.08÷77=77÷77×29.08=1×29.08=29.08
101×0.79=(100+1)×0.79=100×0.79+1×0.79=79+0.79=79.79
91-10÷0.25÷0.4=91-10÷[(1/4)×(4/10)]=91-10÷(1/10)=91-10×10=91-100=-9
402-298=(400+2)-(300-2)=400-300+2+2=104
2.5×12.5×3.2=2.5×12.5×(0.4×8)=(2.5×0.4)×(12.5×8)=1×100=100
7.8÷13+7.8×12/13=7.8×[(1/13)+(12/13)]=7.8×1=7.8

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