简便计算:4.3-2.45+5.7-4.55
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/11 15:23:50
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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