(     )-9=11

17-(     )=0

14-(     )=3

(     )-8=7

(     )-12=7

19-(     )=12

13-(     )=6

15-(     )=8

15-(     )=3

(     )-13=4

(     )-3=11

(     )-3=10

11-(     )=11

14-(     )=6

20-(     )=6

(     )-0=16

(     )-10=3

(     )-2=12

19-(     )=14

16-(     )=10

12-(     )=9

(     )-11=6

14-(     )=11

(     )-12=2

20-(     )=14

(     )-1=14

(     )-6=6

(     )-9=6

17-(     )=8

15-(     )=15

16-(     )=9

(     )-3=13

17-(     )=0

(     )-8=5

(     )-4=7

11-(     )=10

16-(     )=2

(     )-2=16

14-(     )=9

19-(     )=0

12-(     )=3

18-(     )=17

14-(     )=10

(     )-5=9

18-(     )=10

(     )-9=10

20-(     )=6

(     )-2=16

(     )-3=16

(     )-0=11