原式=(45.6+15+54.4+10)x8.88x0.55/55=[(45.6+54.4)+15+10]x8.88x0.11=(100+15+10)x8.88x0.11=125x8.88x0.11=125x8x1.11x0.11=1000x1.11x0.11=1110x0.11=1110x0.1+1110x0.01=111+11.1=122.1