20-7=

14-12=

12-5=

13-8=

11-7=

14-4=

14-14=

12-3=

15-6=

20-9=

19-12=

20-8=

15-10=

17-14=

15-9=

15-3=

20-2=

18-12=

14-8=

16-11=

15-14=

11-11=

13-0=

16-16=

20-19=

16-11=

18-3=

13-4=

12-11=

14-3=

18-11=

14-14=

14-7=

20-0=

14-11=

14-4=

12-8=

16-13=

18-13=

14-12=

15-6=

16-9=

19-14=

14-9=

18-9=

18-2=

20-20=

12-3=

15-5=

13-6=