÷50%=
2-=
×200=
50%×40%=
÷=
50÷25%=
+62.5%=
10×÷10×=
=
100÷10%=
0.1﹣10%=
÷0.125=
×4= 5.4×= ×= ×= ××=
÷4= 6÷= ÷= ÷= 1-×=
1-= ×= 6÷= += ×4×0=
×= ×4= 1÷= ÷1= 1-÷=
50+950= 300﹣201= 45×8= 105÷3=
1﹣= ﹣= 15÷= ×=
12.12﹣12= 2.5×6= 100÷50%= 0.3×0.6=