1999乘以1999除以1998的简便运算

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/28 04:08:08
1999乘以1999除以1998的简便运算

1999乘以1999除以1998的简便运算
1999乘以1999除以1998的简便运算

1999乘以1999除以1998的简便运算
=(1998+1)*(1999/1998)
=1998*(1999/1998)+1999/1998
=1999+1999/1998
=2000又1/1998

2000.00500500500500500500500500500500500500500500500500500500500500500500500500500500500500500500500500500500500500500500500500

=(1998+1)×(1999/1998)
=1998×(1999/1998)+1999/1998
=1999+1999/1998
=2000又1/1998
这样做很简单吧