脱式计算,能简便的要简便:7.6×53/10+38/5×4.7
问题描述:
脱式计算,能简便的要简便:7.6×53/10+38/5×4.7
答
7.6×53/10+38/5×4.7
=38/5x53/10+38/5x47/10
=38/5x(53/10+47/10)
=38/5x10
=76