60.4×0.25+19.6÷4怎么简便计算

问题描述:

60.4×0.25+19.6÷4怎么简便计算

60.4×0.25+19.6÷4
=60.4×0.25+19.6×0.25
=(60.4+19.6)×0.25
=80×0.25
=20

不懂可追问,有帮助请采纳,谢谢!第一步省略,直接从第2部算起可以吗?可以