(     )-1+8=11

(     )+0-0=19

(     )+9-3=12

(     )+11-7=7

18+0-(     )=18

12+2-(     )=14

(     )-6+1=15

18+(     )-1=18

5+(     )-3=9

20+0-(     )=20

19+(     )-0=20

5-2+(     )=13

17+0-(     )=17

(     )+12-1=12

6-(     )+14=16

12+(     )-0=12

4+(     )-6=7

4+8-(     )=10

17+2-(     )=19

12-(     )+3=4

9+6-(     )=14

3-2+(     )=18

(     )-0+9=19

(     )-3+4=11

(     )+0-0=19

(     )+7-6=11

(     )+7-7=8

8-(     )+19=19

13-2+(     )=12

(     )+13-5=12

(     )+5-5=10

11+(     )-0=15

20+(     )-0=20

6+(     )-7=6

20-(     )+2=15

(     )-3+12=14

10+(     )-2=15

11+3-(     )=11

(     )+9-9=9

10+(     )-0=20

12-6+(     )=14

7+(     )-0=12

(     )-2+5=11

(     )-1+11=11

17-0+(     )=18

13-11+(     )=19

(     )-5+4=18

1-0+(     )=11

18+0-(     )=18

(     )+5-4=8