7+(     )=20

3+(     )=17

7+(     )=16

10+(     )=13

0+(     )=13

4+(     )=15

1+(     )=17

16+(     )=19

6+(     )=19

16+(     )=20

6+(     )=19

6+(     )=15

0+(     )=15

18+(     )=19

14+(     )=19

5+(     )=16

17+(     )=18

7+(     )=12

12+(     )=16

14+(     )=18

16+(     )=16

12+(     )=18

6+(     )=13

8+(     )=19

1+(     )=15

9+(     )=20

7+(     )=18

5+(     )=15

3+(     )=16

12+(     )=17

10+(     )=14

8+(     )=15

12+(     )=17

3+(     )=19

5+(     )=20

12+(     )=16

1+(     )=20

16+(     )=20

10+(     )=11

11+(     )=12

2+(     )=18

17+(     )=18

13+(     )=20

1+(     )=19

2+(     )=12

3+(     )=14

8+(     )=15

1+(     )=13

8+(     )=18

6+(     )=17