Question

9999×9999+19999用简便计算怎么算？

Answer 1

计算方法:

9999×9999+19999＝9999×9999+（9999+9999+1）＝9999×9999+9999+9999+1＝9999×（9999+1）+9999+1＝9999×10000+10000＝10000×（9999+1）＝10000×10000=100000000

希望我的回答能帮助到你！

望采纳！谢谢！祝好！

Answer 2

这道题超级简单，可以看做是10000个9999相乘的，简便计算方法如下，望采纳~~~~
9999×9999+19999
=10000×9999-9999+19999
=99990000+10000
=100000000

Answer 3

你好
9999×9999+19999
=9999x9999+10000+9999
=9999x(9999+1)+10000
=9999x10000+10000
=10000x(9999+1)
=10000x10000
=100000000

Answer 4

9999×9999+19999
=9999×9999+（10000+9999）
=9999×（9999+1)+10000
=9999×10000+1×10000
=(9999+1)×10000
=10000×10000
=1000000000

Answer 5

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