34X78一34十34X23怎样简便计算

2025-03-19 00:42:51
推荐回答(3个)
回答1:

解答:原式=34×(78-1+23)
=34×100
=3400

回答2:

=34(78-1+23)=34*100=3400

回答3:

34×(78-1+23)