999*7.78+333*6.66=?(要简算)
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999*7.78+333*6.66=?(要简算)
999*7.78+333*6.66=?(要简算)
999*7.78+333*6.66=?(要简算)
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
999*7.78+333*6.66=?(要简算)
333*6.66+999*7.78怎么巧算
999×7.78+333×6.66怎样简算
999乘7.78加333乘6.66
999*7.78+333*6.66的简算方法!
999乘7.78加333乘6.66 用 简算
简算:999×7.78+333×6.66≡ 5.97×2.6+0.597×75-597×0.001
简算9.99*7.78+3.33*6.66简算
999*222+333*334=
333*666+999*778=?
计算 111×333+111×999=?
简便运算:333×667+999×111=?
666*333+778*999=?简便计算
111+222+333+……+999=?
333*334+222*999=几jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
9.99*7.78+3.33*6.66的简便方法怎样算
9.99*7.78 3.33*6.66如何用简便方法计算
9.99*7.78+3.33+6.66这道题的简算怎么算?