int b; char c; scanf("%d %c %d",&a,&c,&b); if(c=='+') { printf("%d",a+b); } else if(c=='-') { printf("%d",a-b); } else if (c=='*') { printf("%d",a*b); } else if(c=='/'&&b!=0) { printf("%d",a/b); } else if(c=='%'&&b!=0) { p...