6.66*2.22+5.56*3.33
=3.33*2*2.22+5.56*3.33
=3.33*（4.44+5.56）
=3.33*10
=33.3
一道数学题,递等式计算,必须用简便方法.6.66*2.22+5.56*3.33
一道数学题,递等式计算,必须用简便方法.6.66*2.22+5.56*3.33
数学人气：954 ℃时间：2019-09-02 00:47:42
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