您好,很高兴为您解答.194(0.1*2.9+0.1)=194*0.1*(2.9+1)=19.4*3.9
194(0.1*2.9 0.1)=194*0.1*(2.9 1)
9.4*0.9+0.1*19.4 =9.4*0.9+0.1*(10+9.4)=9.4*0.9+0.1*10+0.1*9.4=(9.4*0.9+0.1*9.4)+0.1*10=9.4*(0.9+0.1)+1=9.4*1+1=10.4
2.9-1.9*0.1=2.9-0.19=2.71 希望能帮到你!
你好!0.71*29+.71*1=0.71*(29+1)=0.71*30=21.3打字不易,采纳哦!
2.9-2.9*0.52=2.9*(1-0.52)=2.9*0.48=1.392
2.9+31.1+2.04=30+(2+1+2)+(0.9+0.1)+0.04=36.04
2.9+29*19+0.29*80+0.1*199=2.9+2.9*8+2.9*190+0.1*199=2.9*(1+8+190)+0.1*199=199*3=(200-1)*3=597
2.9+29.9+299.9+2999.9=(3+30+300+3000)-4*0.1=3333-0.4=3332.6 希望能解决您的问题 谢谢
2.9*29.9*299.9