作业帮0.999×0.6+0.111×3.6等于多少?
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/28 04:10:02
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