44.5+21.3
5.78+12.2
22-14.6
63.9-15.7
55.3-28.2
8.4-3.1
20+5.8
14.8-9.5
30.8-7.5
17.9+12.7
=5.3
=23.3
=30.6
=7.4
=17.8
=48.2
=65.8
=25.8
=27.1