⑴30%×2.84=
⑵6+94%=
⑶(求比值)3:20%=
⑷8×=
⑸=
⑹(化简比)=
0.75=
0.07=
32.5=
0.47=
0.8%=
137.5%=
28.7%=
40%=
×= 0×+= 1÷=
÷= ÷= ×÷×=
75%+25%= ×3= 8÷= =
0÷= ÷5= ×= +÷=
×= 3.2×= ×× ×-×=
= ÷= 8÷8÷ ×5-2×=
足球
乒乓球拍
( )元/个
72元/副