2.011乘390+20.11乘41+201.1乘2+

来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/24 00:10:19
2.011乘390+20.11乘41+201.1乘2+2.011乘390+20.11乘41+201.1乘2+2.011乘390+20.11乘41+201.1乘2+2.011乘390+20.11乘41+

2.011乘390+20.11乘41+201.1乘2+
2.011乘390+20.11乘41+201.1乘2+

2.011乘390+20.11乘41+201.1乘2+
2.011乘390+20.11乘41+201.1乘2
=20.11*39+20.11*41+20.11*20
=20.11*(39+41+20)
=20.11*100
=2011