99x78十78的简便计算?

99x78十78的简便计算?
2025-03-18 02:48:44
推荐回答(3个)
回答1:

99x78十78
=78x(99+1)
=78x100
=7800

回答2:

99x78十78=78×(99+1)=78×100=7800

回答3:

99X78+78
=(99+1)X78
=100X78
=7800