6.12+3.78=
16×30%=
1.2+0.2×0.3=
0.25×2021×4=
4.25×3.6+57.5×0.36
5×π=
5÷=
1÷5%=
0.42=
×8÷×8=
2.4×5=
0.3÷6=
456+44=
0.33=
+79×=
10÷0.05=
1.97+4.13=
3897–2998=
÷75%=
(+)×=
0.125×7×8=
-10%=
4.5-4.5+4.5÷4.5=