6+8=

14-12=

16-9=

3+14=

13-2=

4+16=

4+15=

16-0=

13+7=

10+7=

20-20=

3+8=

11+1=

20-12=

17+3=

16-2=

20-15=

10+10=

19+1=

16+1=

10+1=

16-12=

20-5=

16-1=

15-13=

14-6=

14-8=

18-1=

19+1=

13-3=

16-8=

9+11=

19-8=

19-14=

14-11=

1+14=

16+4=

12-10=

19+0=

14+0=

3+11=

18-4=

10+2=

11-7=

16-1=

16-5=

19-0=

3+9=

10+6=

16-9=