48-(     )-0=8

(     )-4-22=21

(     )-21-1=1

42-38-(     )=2

24-(     )-11=13

35+9+(     )=50

23-17-(     )=3

(     )-2-21=0

24+5+(     )=45

44+3+(     )=48

38+4+(     )=49

13+(     )+19=34

(     )+17+6=39

16+12+(     )=45

49-24-(     )=21

44-(     )-1=12

43-(     )-30=0

4+6+(     )=49

(     )-5-16=2

4+40+(     )=46

46+(     )+0=49

(     )+4+1=45

47-28-(     )=0

33-15-(     )=14

29+5+(     )=49

39+8+(     )=47

9+(     )+2=48

24-(     )-9=9

(     )+21+5=43

30-(     )-10=18

(     )+11+26=50

(     )-10-16=19

45+(     )+0=49

(     )+22+2=32

47+(     )+3=50

(     )-5-23=3

27-11-(     )=14

46-(     )-13=31

11+(     )+10=39

34-(     )-11=12

(     )-39-1=1

(     )-22-13=6

47-6-(     )=38

1+24+(     )=42

31+10+(     )=43

25+(     )+0=45

30-(     )-7=17

36+14+(     )=50

42-(     )-0=22

43-4-(     )=38