(     )+30=35

(     )+0=43

(     )+20=45

(     )+20=39

20+(     )=41

10+(     )=31

30+(     )=30

49+(     )=49

(     )+0=48

31+(     )=46

(     )+6=37

(     )+28=28

11+(     )=34

(     )+2=23

(     )+6=43

(     )+26=33

39+(     )=43

(     )+18=45

(     )+6=48

(     )+3=34

(     )+1=50

3+(     )=41

(     )+9=21

(     )+5=44

38+(     )=43

18+(     )=22

(     )+4=37

33+(     )=49

(     )+34=40

(     )+43=48

(     )+3=43

(     )+2=42

(     )+5=35

7+(     )=42

9+(     )=24

49+(     )=50

(     )+9=39

(     )+5=45

23+(     )=32

(     )+4=49

(     )+27=33

(     )+26=47

14+(     )=40

2+(     )=28

(     )+16=49

(     )+18=48

(     )+16=24

(     )+14=39

36+(     )=44

(     )+21=37