78×6＋21×6＋6怎么简便运算?
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78×6＋21×6＋6怎么简便运算?78×6＋21×6＋6怎么简便运算?78×6＋21×6＋6怎么简便运算?78*6+21*6+6=78*6+21*6+1*6=6*(78+21+1)=6*100=60
78×6＋21×6＋6怎么简便运算?
78×6＋21×6＋6怎么简便运算?
78×6＋21×6＋6怎么简便运算?
78*6+21*6+6
=78*6+21*6+1*6
=6*(78+21+1)
=6*100
=600
原式=6×(78+21+1)
=6×100
=600
78*6+21*6+6
=78*6+21*6+1*6
=6*(78+21+1)
=6*100
=600
78*6+21*6+6
=[78+21+1]*6
=100*6
=600
78×6＋21×6＋6
=6×(78＋21＋1)
=6×100
=600
解，＝6×(78 21 1)＝600.希望能帮助你，祝你学习进步！