话说..这类问题犯得着上这提问来吗?

1.(374+55)+(253+25)+(347+526)2.773-297+1973.678+104-564.678+999+585.678-134+336.678-197+997.945-537-98+2378.19+199+1999+199999.77+64+75-7310.(2542+2543-2538)-211.56+22+4412.67+(18+133)13.728+34+76+27214.327+466+(534+173)15.585+(267+415)+73316.874-(674+22)17.571-36-6418.672-(412+243)19.7896-(1234+5896)20.426+109-521.5678-4987+63222.197+389-4523.487+168-5624.49+499-25025.667+458-34526.27+33+30-3127.56+45-2328.774+776-2429.843+(365-243)30.147+26+53-3931.800-89+4032.2784+4253-78433.1668+65-2434.9999+54-8935.43+173-3536.4123+3412-234137.8247-(247+159)38.54+48-5139.562+781-26440.3+6-241.32-14+6742.33+44-5543.529+341-58144.61+35-2545.23-12+6846.52+63-4947.37+29-4848.63-54+6849.55-14+6250.32+49-57