45×69+55×69用乘法分配律简便计算怎么算?

2025-06-27 00:51:23
推荐回答(2个)
回答1:

乘法分配律简便计算如下:
45×69+55×69

=69×(45+55)
=6900

回答2:

=69×(45+55)
=69×100
=6900