(     )-18=4

36-(     )=1

28-(     )=24

29-(     )=26

48-(     )=7

27-(     )=7

45-(     )=15

(     )-32=8

47-(     )=14

(     )-37=9

(     )-5=29

(     )-17=5

25-(     )=1

23-(     )=1

21-(     )=11

45-(     )=28

23-(     )=16

(     )-47=0

(     )-1=28

28-(     )=14

23-(     )=8

50-(     )=47

(     )-38=5

28-(     )=27

(     )-29=6

(     )-32=1

28-(     )=2

(     )-13=10

37-(     )=28

(     )-5=42

41-(     )=9

(     )-13=33

36-(     )=7

24-(     )=11

28-(     )=26

(     )-16=25

(     )-10=20

39-(     )=21

(     )-1=39

35-(     )=15

30-(     )=20

24-(     )=23

(     )-0=35

34-(     )=5

(     )-6=21

33-(     )=12

22-(     )=18

(     )-10=30

(     )-21=5

47-(     )=36