(     )-6-3=4

(     )-9-3=2

18-1-(     )=8

12-6-(     )=5

17-(     )-12=2

(     )-8-1=9

18-12-(     )=5

(     )-7-4=0

18-16-(     )=1

(     )-12-1=3

11-3-(     )=1

(     )-6-6=2

12-2-(     )=9

11-(     )-10=0

(     )-2-11=1

16-15-(     )=1

(     )-5-10=2

14-11-(     )=0

15-(     )-1=7

(     )-17-2=0

12-(     )-1=2

16-9-(     )=1

15-11-(     )=2

(     )-9-2=5

(     )-4-12=1

(     )-16-2=1

17-(     )-1=0

(     )-8-4=6

15-11-(     )=1

20-(     )-14=2

17-3-(     )=13

16-7-(     )=1

17-(     )-5=10

16-8-(     )=4

11-9-(     )=2

17-5-(     )=6

(     )-8-1=2

16-(     )-7=0

(     )-8-3=4

16-8-(     )=1

14-8-(     )=3

(     )-3-4=12

(     )-3-9=1

12-(     )-2=0

19-(     )-3=3

(     )-6-1=6

20-(     )-8=0

18-14-(     )=0

(     )-12-4=4

11-9-(     )=2