0.37+3.23+1.77+9.63
0.58×98
35.5÷2.5÷4
29.8-4.8-5.2
1.25×32×2.5
5.5×16.3+0.37×55
①0.175÷(0.25×4)
②4.2+5.8÷0.16
③(4.32-0.64)÷0.23
④2.1÷3.5÷0.2
①0.53×2.5+
②25×0.032×12.5
③ [()×]
④6.83+17.9﹣0.83+32.1