196﹣69=
× =
÷ =
6.22+44.78=
6÷2%=
3﹣3÷7=
+ =
+ ÷ =
598+403≈
0.125×3.2=
24÷ =
0.5×0.6÷0.5×0.6=
38﹣19=
2.5×4=
=
9﹣0.9=
125×60%=
7.2÷0.4=
4.5a﹣a=
1÷10+=
()×12=
×3÷=
×0=
= ﹣0.25= 0÷5=
= 5.4×= 80×0.7=