问题详情
(1)(0.12+0.22+0.32+0.42)2÷(0.13+0.23+0.33+0.43)
(2)3.97÷7+17×4.03-17
(3)0.0021×[167+2.93÷(1123-1.9)]÷0.001
(4)0.125×0.25×0.5×64
(5)4936×(0.75×42.7-0.573×25+57.3)÷3.