0.25+0.5=
3.2-0.22=
1-0.07=
5.54+4.6=
0.87+0.06=
4-2.6=
0.37+0.3=
2+0.1-2+0.1=
6-4.6+0.13
46.76-5.13-0.87
13.52-8.26+3.48+0.26
6.53-(1.64+2.53)=