50-40=

21-11=

29-7=

47-34=

24-7=

46-19=

39+9=

6+19=

28+9=

32-2=

19+20=

39+3=

37-35=

44+1=

8+29=

27-18=

40-23=

43+5=

26+2=

36-5=

32-27=

43-5=

21-14=

21+5=

26-3=

47+3=

37+3=

14+15=

43+5=

23-0=

27+7=

18+5=

48+0=

23-14=

22+2=

22+15=

26-22=

22+13=

50-45=

45-7=

22-11=

33-31=

29+18=

49-4=

34+4=

26-6=

46-12=

41-33=

39-16=

40-19=