57+22=
79
97-34=
63
6*9=
54
46+39=
85
72-34=
38
5*30=
150
654+45=
699
175-31=
144
3600:12=
300
325+438=
763
242-123=
119
92*20=
1840
1142+3769=
4911
3367-2690=
677
10000:4=
2500