(     )-30-2=9

34-(     )-3=2

21-4-(     )=17

31-(     )-3=1

41-21-(     )=8

23-(     )-9=14

(     )-24-20=1

(     )-18-0=8

33-11-(     )=20

(     )-23-4=3

48-7-(     )=0

27-(     )-7=17

(     )-15-4=3

44-34-(     )=10

27-(     )-2=15

27-14-(     )=8

(     )-31-5=7

28-(     )-1=2

22-(     )-4=2

39-(     )-6=22

21-(     )-7=1

(     )-38-0=1

(     )-23-8=0

42-26-(     )=11

(     )-25-0=7

50-(     )-24=0

(     )-1-0=21

50-1-(     )=27

22-(     )-7=4

27-6-(     )=19

(     )-43-0=1

38-(     )-11=21

(     )-3-18=2

37-6-(     )=7

(     )-19-15=6

(     )-17-16=8

50-(     )-11=7

43-(     )-2=8

(     )-9-11=2

(     )-22-3=4

29-16-(     )=3

(     )-33-5=1

27-(     )-6=0

42-35-(     )=4

43-37-(     )=4

(     )-26-11=7

29-(     )-8=1

(     )-11-8=4

31-(     )-2=0

29-23-(     )=4