34+8= 49+5= 42+31= 22+8=
30+20= 17+3= 4×5= 5×5=
3×3= 4×4= 2×4= 15+9+5=
24+60-7=
75+5= 86-12= 5+5= 56-(18+12)=
1×1= 53-30= 5×5= 67-37+15=
37-25= 85-7= 6+35= 26+33-15=
87-15= 7+63= 17+30= 59-3-20=
37+22= 20+30= 56-16= 78-40+4=
50-23= 65-6= 90-18= 54+6-55=