4793 - 2549 = 2244
73512 + 1487 = 74999
539793/9(деление)=59977
3174*86=272964
2) 4793 - 2549+1 = 2245 4793 - 2549-1 = 2243
73512 + 1487+1 = 75000 73512 + 1487-1 = 74998
539793/9(деление)+7=59984 539793/9(деление)-7=59970
3174*86+4=272968 3174*86-4=272960