7+(     )=15

5+(     )=13

1+(     )=11

5+(     )=20

8+(     )=18

17+(     )=19

7+(     )=14

14+(     )=15

7+(     )=17

1+(     )=14

11+(     )=12

0+(     )=18

2+(     )=12

18+(     )=20

2+(     )=19

3+(     )=13

9+(     )=11

4+(     )=15

18+(     )=20

10+(     )=15

4+(     )=14

1+(     )=11

15+(     )=18

11+(     )=19

3+(     )=20

2+(     )=16

16+(     )=19

4+(     )=17

2+(     )=12

4+(     )=20

14+(     )=17

14+(     )=17

17+(     )=18

10+(     )=16

10+(     )=13

8+(     )=12

13+(     )=17

18+(     )=18

16+(     )=19

5+(     )=16

3+(     )=17

13+(     )=13

15+(     )=18

10+(     )=18

9+(     )=19

9+(     )=16

4+(     )=19

10+(     )=12

9+(     )=20

8+(     )=18