5+0.3=
1.1﹣0.5=
2﹣0.3=
0.23+0.45=
3.4+4.6=
1﹣0.67=
9.56﹣6.56=
0.08+0.02=
10﹣7.3=
0.61+0.39=
2.2﹣0.4=
5.2+2.5=