24×25%=
160÷40%=
1-72%=
36%+64%=
80×(1+25%)=
60÷(1-40%)=
45×(1-20%)=
72÷(1+20%)=
1÷0.05= 9.7+0.03= 2.5×4=
125%×8= 180÷6= ﹣0.5=
202= 0.6÷= 1﹣1÷9=
:= 0.53= ﹣×0=
①6.4×2.5×1.25
②8.5×98%
③÷4+×
④×