7+4=
eleven
5+5=
ten
12-9=
three
8+5=
thirteen
7+7=
fourteen
11+9=
twenty
11+7=
eighteen
20-5=
fiteen
5+6=
eleven
18-4=
fourteen
17-2=
fifteen
4+9=
thirteen
10+2=
twelve
9+9=
eighteen
17-6=
eleven
17-5=
twelve
8+11=
nineteen
15+4=
nineteen
10+7=
seventeen
8+9=
seventeen
12+4=
sixteen
19-5=
fourteen
10+5=
fifteen
15+2=
seventeen