2.5x+4.5=19.5
(x+3.2)÷0.6=12
5x-1.4x=7.2
0.5×0.6=
0.16×0.5=
5.5×0.2=
3.5×3=
125×0.08=
0.01×0.1=
1.2×0.6=
1.7×3=
80×0.04=
0.25×0.4=
0×0.99=
0÷1.23=
1.23÷1=
0.99×1=
28.5-15=
2.5+0.5÷2=
1.8÷0.5×0.5=
2.45÷25÷0.4=
1.7+3=
5.5÷5=
0.3×0.7=
7a﹣a=
2.1×3=
1÷0.2=
8.4÷4=
1.4﹣0.6=