计算239＋468＝（）627＋589＝（

计算7h,V*P6Y)g*@6b6A-c7S,^9r.S

239＋468＝6G(W4t:U(w6w(V6O2U:B)R'\7h,V*P6Y)g*@6b6A-c7S,^9r.S

627＋589＝.d4V0X1Q7c;@/Y6P:h;F7h;T4\(F/c0s-X(b+T7h,V*P6Y)g*@6b6A-c7S,^9r.S

600－354＝*M(}/u:|5x9M7A,?/M7h,V*P6Y)g*@6b6A-c7S,^9r.S

807－118＝*n3_4w,V*X(J9C;U9I:k4?2t7h,V*P6Y)g*@6b6A-c7S,^9r.S

645＋286＝(x7d1l5p,h2r+_3W3\8R0Z7^7h,V*P6Y)g*@6b6A-c7S,^9r.S

294＋527＝;W9]7g+U2a(E'g6W7h,V*P6Y)g*@6b6A-c7S,^9r.S