在括号里填上合适的数。(Y2v,X8f4v5T:b7C
（1）/`/j3i0O+C)P+27-43=38(Y2v,X8f4v5T:b7C
（2）100-5V(X8R(I7t.D2g.O-35=27(Y2v,X8f4v5T:b7C
（3）73-0?.R)]'Y5T8b8U;f7M+m7_+23= 46(Y2v,X8f4v5T:b7C
（4）83+19-+T-S(Q/~-~*D(x8k=50(Y2v,X8f4v5T:b7C