=
8.2+0.08=
8.1÷3%=
×0.25=
6-6÷9=
10÷=
1÷-÷1=
×6÷×6=
547+198=
0.6-0.28=
5.5×=
3.6÷0.36=
7.7÷=
×5÷×5=