优质解答
31.50+160÷40 (58+370)÷(64-45)32.120-144÷18+3533.347+45×2-4160÷5234(58+37)÷(64-9×5)35.95÷(64-45)36.178-145÷5×6+42 420+580-64×21÷2837.812-700÷(9+31×11) (136+64)×(65-345÷2...
31.50+160÷40 (58+370)÷(64-45)32.120-144÷18+3533.347+45×2-4160÷5234(58+37)÷(64-9×5)35.95÷(64-45)36.178-145÷5×6+42 420+580-64×21÷2837.812-700÷(9+31×11) (136+64)×(65-345÷2...