简算：999×7.78+333×6.66≡ 5.97×2.6＋0.597×75－597×0.001

来源：学生作业帮编辑：大师作文网作业帮分类：数学作业时间：2024/11/13 19:23:45

5.97x2.6+0.597x75-597x0.001
=5.97x2.6+5.97x7.5-5.97x0.1
=5.97x(2.6+7.5-0.1)
=5.97x10
=59.7
999*7.78+333*6.66
=999*7.78+333*3*2.22
=999*7.78+999*2.22
=999*(7.78+2.22)
=999*10
=9990

简算：999×7.78+333×6.66≡ 5.97×2.6＋0.597×75－597×0.001 5.97*2.6+0.597*75-597*0.001（要求简算） 999乘7.78加333乘6.66 用简算 999×7.78+333×6.66怎样简算 333*6.66+999*7.78怎么巧算 999乘7.78加333乘6.66 999*7.78+333*6.66=?（要简算） 999*7.78+333*6.66的简算方法! 简算9.99*7.78+3.33*6.66 再问几题...97*98分之97 39*4分之1+27*0.25+34*25% 5.97*2.6+0.597*75-59 999*111+333*667简算简算999*779+333*666