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！