0.999×0.6+0.111×3.6等于多少?
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0.999×0.6+0.111×3.6等于多少?0.999×0.6+0.111×3.6等于多少?0.999×0.6+0.111×3.6等于多少?0.999×0.6+0.111×3.6=0.999x0.
0.999×0.6+0.111×3.6等于多少?
0.999×0.6+0.111×3.6等于多少?
0.999×0.6+0.111×3.6等于多少?
0.999×0.6+0.111×3.6=0.999x0.6+0.999x0.4=0.999x﹙0.6+0.4﹚=0.999x1=0.999
注3.6=9x0.4,0.111x3.6=0.111x9x0.4=0.999x0.4
0.999
将3.6拆成9*0.4
得0.999*0.6+0.111*9*0.4=0.999*0.6+0.999*0.4
乘法分配律提取0.999，可得结果~
0.999