简便计算9999*7778+3333*66665.6*69.32+138.64*0.05+693.2*0.432.4/0.25

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简便计算9999*7778+3333*66665.6*69.32+138.64*0.05+693.2*0.432.4/0.25简便计算9999*7778+3333*66665.6*69.32+138.

简便计算9999*7778+3333*66665.6*69.32+138.64*0.05+693.2*0.432.4/0.25
简便计算
9999*7778+3333*6666
5.6*69.32+138.64*0.05+693.2*0.43
2.4/0.25

简便计算9999*7778+3333*66665.6*69.32+138.64*0.05+693.2*0.432.4/0.25
9999*7778+3333*6666
=3333*7778*3+3333*6666
=3333*(23334+6666)
=3333*90000
=299970000
5.6*69.32+138.64*0.05+693.2*0.43
=5.6*69.32+69.32*2*0.05+69.32*4.3
=(5.6+0.1+4.3)*69.32
=10*69.32
=693.2
2.4/0.25
=2.4*4/(0.25*4)
=9.6/1
=9.6

虽然我初一了 但是小学数学还是不过关 自己想吧 或者问老师