4+9-(     )=13

(     )+14-5=11

14+(     )-3=14

(     )+19-3=17

(     )-2+7=17

(     )-0+12=19

(     )-9+3=14

2-(     )+17=18

11-(     )+0=11

7+(     )-4=7

(     )-2+1=18

1-0+(     )=17

(     )-16+15=19

6-5+(     )=15

(     )+16-11=7

15+(     )-2=16

18-(     )+0=4

(     )+13-8=6

0+(     )-16=0

(     )-11+4=12

5+(     )-2=11

5-2+(     )=14

7+5-(     )=8

14-3+(     )=19

(     )-0+11=17

17-(     )+7=19

2-(     )+10=12

12-2+(     )=14

14+1-(     )=15

(     )-8+2=14

(     )+5-4=7

(     )+1-0=18

(     )+11-7=5

(     )-6+12=18

5+(     )-2=12

(     )-2+10=11

20-12+(     )=18

6+7-(     )=11

(     )+14-3=11

8+9-(     )=9

(     )-6+3=11

19-0+(     )=19

3+16-(     )=17

(     )-3+12=13

10-1+(     )=18

(     )-0+10=14

(     )-3+12=16

7-(     )+13=16

17-(     )+17=17

5+11-(     )=10