给几道五年级上册的计算题
2.05×46.7×0.30.29×0.0772×0.81+10.4
7.83÷95.89÷0.2319.76÷5.29.4÷6(保留两位小数)
x+3.2=6.41.6x=6.4(2.8+x)×2=10.4