简便计算:4.3-2.45+5.7-4.55

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/20 11:58:26
简便计算:4.3-2.45+5.7-4.55简便计算:4.3-2.45+5.7-4.55简便计算:4.3-2.45+5.7-4.554.3-2.45+5.7-4.55=4.3+5.7-(2.45+4.

简便计算:4.3-2.45+5.7-4.55
简便计算:4.3-2.45+5.7-4.55

简便计算:4.3-2.45+5.7-4.55
4.3-2.45+5.7-4.55
=4.3+5.7-(2.45+4.55)
=10-7
=3

=(4.3+5.7)-(2.45+4.55)
=10-7
=3

太简单啦,4.3+5.7-(2.45+4.55)=10-7=3

4.3-2.45+5.7-4.55=4.3+5.7-(2.45+4.55)=10-7=3

=1.85+5.7-4.55
==7.55-4,55
=3