巧算“12.34*56.78+876.6*5.678”

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/04 08:00:26
巧算“12.34*56.78+876.6*5.678”

巧算“12.34*56.78+876.6*5.678”
巧算“12.34*56.78+876.6*5.678”

巧算“12.34*56.78+876.6*5.678”
12.34*56.78+876.6*5.678
=5.678*(123.4+876.6)
=5.678*1000
=5678

12.34*56.78+876.6*5.678
=12.34*56.78+87.66*56.78
=(12.34+87.66)*56.78
=100*56.78
=5678