如题所述
第1个回答 2015-01-09
78x37-37x68
=78x37-68x37
=(78-68)x37
=10x37
=370本回答被提问者采纳
=78x37-68x37
=(78-68)x37
=10x37
=370本回答被提问者采纳
第2个回答 2022-05-18
78x37-37x68
＝78×37-68×37
=(78-68)×37
=10×37
=370
＝78×37-68×37
=(78-68)×37
=10×37
=370
