如题所述
33x24+67x78+33x54
=33x24+33x54+67x78
=33x(24+54)+67x78
=33x78+67x78
=(33+67)x78
=100x78
=7800
=33x24+33x54+67x78
=33x(24+54)+67x78
=33x78+67x78
=(33+67)x78
=100x78
=7800
温馨提示:答案为网友推荐,仅供参考
第1个回答 2015-09-13
33x24+67x78+33x54
=33x(24+54)+67x78
=33x78+67x78
=(33+67)x78
=100×78
=7800
=33x(24+54)+67x78
=33x78+67x78
=(33+67)x78
=100×78
=7800