16-0-(     )=13

14-9-(     )=2

(     )-7-1=11

15-(     )-1=1

(     )-3-3=5

11-8-(     )=2

20-(     )-1=1

16-(     )-3=9

14-5-(     )=2

17-(     )-1=12

(     )-5-0=9

19-7-(     )=1

(     )-2-3=6

13-4-(     )=0

11-3-(     )=5

(     )-7-4=6

17-(     )-3=3

(     )-3-5=9

20-(     )-3=3

13-(     )-1=1

20-(     )-8=12

(     )-12-3=5

13-(     )-3=7

(     )-10-1=7

18-17-(     )=1

(     )-10-1=9

(     )-2-5=9

18-5-(     )=2

16-(     )-9=3

11-4-(     )=5

(     )-4-7=0

20-(     )-5=1

20-0-(     )=9

16-(     )-0=15

12-0-(     )=3

18-14-(     )=1

(     )-11-3=2

16-(     )-3=1

19-(     )-15=3

14-3-(     )=2

16-4-(     )=3

11-7-(     )=0

16-5-(     )=3

(     )-7-0=4

16-(     )-1=9

16-9-(     )=6

20-(     )-6=9

11-0-(     )=11

12-11-(     )=0

19-12-(     )=5