9999*9999+19999怎样简便计算

2025-03-22 00:45:49
推荐回答(3个)
回答1:

9999x9999+19999
=9999x(10000-1)+19999
=9999x10000-9999+19999
=99990000+(19999-9999)
=99990000+10000
=100000000

回答2:

9999*10000一9999十19999

回答3:

计算器算