5.3+ 2.6=
7.9
5.6-2.3
3.3
18+8.8
26.8
2.15+ 5.26
7.41
10.4-4.5
5.9
9.01+9.10
18.11
29.19+ 9.91
39.1
17-0.05
16.95
0.934+0.6
1.534
0.75+0.03
0.78
9.9-9.09
0.81
18-8.8
9.2
6.236+0.487
6.723
6.236-0.487
5.749
17-16.198
0.802