39-9=

41-23=

26-17=

25-10=

19+17=

2+42=

1+27=

28-1=

35-20=

25-24=

1+33=

29-8=

11+20=

29+6=

44-17=

23+11=

24-20=

36-20=

26-20=

49+0=

30-8=

50-6=

7+39=

22-15=

29-26=

26-14=

45+1=

5+29=

10+27=

33-4=

50-35=

16+21=

22-10=

36-8=

31-18=

46-32=

32+11=

48-30=

21-3=

48+2=

21+12=

37+10=

25-19=

33-30=

23+7=

36-6=

49-15=

9+20=

25-14=

18+22=