23-(     )=11

38-(     )=38

(     )-21=2

(     )-20=29

31-(     )=13

(     )-17=29

(     )-24=16

(     )-35=15

(     )-27=19

38-(     )=31

(     )-30=11

30-(     )=20

35-(     )=7

29-(     )=0

41-(     )=38

(     )-28=16

(     )-17=31

(     )-13=15

46-(     )=28

42-(     )=29

34-(     )=10

32-(     )=18

34-(     )=4

(     )-20=1

44-(     )=39

(     )-4=21

37-(     )=12

(     )-11=16

(     )-2=31

(     )-23=25

(     )-20=25

39-(     )=31

(     )-11=14

38-(     )=16

(     )-12=32

(     )-4=18

(     )-37=6

(     )-22=12

(     )-18=24

(     )-9=38

(     )-9=20

48-(     )=19

(     )-21=3

44-(     )=19

35-(     )=18

32-(     )=11

39-(     )=27

27-(     )=24

(     )-13=29

39-(     )=20