102ⅹ99简便计算?

2024-11-20 20:38:59
推荐回答(3个)
回答1:

简便计算如下:
=102×(100-1)
=10200-102
=10098

回答2:

102×99
=102×(100-1)
=102×100-102×1
=10200-102
=10098

回答3:

(100+2)×(99+1-1)
(100+2)×(100-1)
10000-100+200-2
10100-2
10098