30-(     )=9

(     )-22=19

2+(     )=23

(     )+10=32

(     )-0=37

(     )+20=34

28-(     )=1

(     )+4=31

42-(     )=4

25-(     )=14

(     )-29=4

41+(     )=45

(     )+8=44

(     )+35=40

41+(     )=48

(     )+22=30

(     )-16=33

34+(     )=45

43-(     )=7

(     )-11=16

(     )+26=32

(     )-26=6

(     )+11=48

22-(     )=12

49-(     )=49

(     )+12=45

6+(     )=44

15+(     )=50

6+(     )=35

17+(     )=32

33-(     )=32

31-(     )=25

35-(     )=17

(     )+29=49

23+(     )=41

(     )-16=17

9+(     )=29

(     )-20=27

23-(     )=22

(     )-30=2

(     )-5=35

(     )-28=20

(     )+16=46

42-(     )=14

26-(     )=24

(     )-16=25

(     )-1=37

(     )-8=18

37-(     )=12

13+(     )=22