70.1-41.89+2.78怎样简便运算

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/25 03:55:46
70.1-41.89+2.78怎样简便运算70.1-41.89+2.78怎样简便运算70.1-41.89+2.78怎样简便运算70.1-41.89+2.78=70.1+2.78-41.89=72.88

70.1-41.89+2.78怎样简便运算
70.1-41.89+2.78怎样简便运算

70.1-41.89+2.78怎样简便运算
70.1-41.89+2.78
=70.1+2.78-41.89
=72.88-41.89
=72.88-41.88-0.01
=30.99

原式=72.88-41.89=30.99应该没有更简单的。其实都差不多。方法。