9×=
=
×0.75=
×16=
0.75+ =
÷=
:( )=
×5.6÷0.875=
3.99+0.1= 1÷1%= ÷3= 6- = 0.25× ×4=
5-3.09= = 4.3+3.57= 1.9-2÷4= 4× ÷4× =
×=
×3=
14÷=
+=
3-=
÷4=
÷×=
×20= ÷= 10÷= 0.6×=
1÷= ×= ÷= ÷=
÷= 21÷= ×0.3= ÷-×0=
0.55-= ÷4.5= ×= +×30%=
里程/千米
郑州一徐州
349
徐州一南京
348
南京一无锡
无锡一上海
126