10.76-0.83+1.24-4.17 =(10.76+1.24)-(0.83+4.17)=12-5=73.5/0.56 =3.5÷(0.7×0.8)=3.5÷0.7÷0.8=5÷0.8=6.2545/0.18 =45÷（0.9×0.2）=45÷0.9÷0.2=50÷0.2=25081.3-81.3x0.9=81.3×(1-0.9)=81.3×0.1=8.13请问您这个除号是怎样打出来的