1200÷1.6×0.84=

1200÷1.6×0.84'\9].z,Y*U,^,F*i9}9W.A)x3q

算式：提示*^,Q)|(m/E3G4s;L7T)R*S(b,}2];r3i;j'\9].z,Y*U,^,F*i9}9W.A)x3q

=7O1P1u*n2l3x'v1P;A;f.@'\9].z,Y*U,^,F*i9}9W.A)x3q