3+1418 1619-3 105+5
( )+( )=( ) ( )+( )=( )( )-( )=( ) ( )-( )=( )
10+2=
5+10=
12+7=
2+10=
10+5=
7+12=
12-2=
15-5=
19-7=
12-10=
15-10=
19-12=
2+17=
12+6=
10+8=
3+10=
19-3=
18-1=
14-4=
17-5=
13+1=
3+16=
11+8=
3+11=
16-2=
18-4=
19-6=
16-3=
1920 14+620 15-415-2
1011 919 16+320
1717- 5 15-313 4+1212+4
4+<7 +3>6 14->10
156+10 913 16-615 103+7
11+216 76+3 1318-8 2019