45×38+56×38-38的简便计算。

Question

如题所述

Answer 1

45×38+56×38-38=（45+56-1）x38=100x38=3800本回答被提问者采纳

Answer 2

=44×38+38+56×38-38
=（44+56）×38+38-38
=380

Answer 3

（45＋56－1）×38
＝100×38
＝3800

Answer 4

(45+56-1)*38=3800

Answer 5

(45+56-1)✘38=3800