0.52+0.48=
1.2﹣0.6=
0.5÷0.01=
0.125+ =
2.5×0.2=
46×10%=
+ =
4÷ =
①1.25×3.2×0.25
②( ﹣ )×24
③1.3× +20%×0.7+0.2
①80+ x=100
②x+10%=15.4
③ :3x= :