0.5×0.9=
0.3×9=
0.15×6=
9.07×0=
25×0.4=
4.58×100=
0.06×0.47=
0.01×3200=
0.3×0.3×0.3=
1.25-1.25×0.8=
0.89﹣0.25= 1﹣0.98= 8.8﹣6.7= 5×400=
3.04+7.6= 1.23÷3= 0.4×0.06= 0÷1.89=
1÷7+= 49÷0.1= ÷= 0.5﹣+0.5﹣=
60×20%= (+)×24= 40÷(1﹣)= ×=