9+2+1=
12
18+2+5=
25
2+ 4+4=
10
6+4+3+7=
20
55+1+5+9=
70
50+50+100+200=
400
5+8+3+5+2+7+6=
36
47+3+10+15+5=
80
1+2+3+3+1+10=
Press F11 Select menu option View > Enter Fullscreen for full-screen mode