К 867+46: 867 + 46 = 913
О 657-56: 657 - 56 = 601
К 472+257: 472 + 257 = 729
От 468-44: 468 - 44 = 424
2676: 26 76 = 1976
К 867+46: 867 + 46 = 913
О 657-56: 657 - 56 = 601
К 472+257: 472 + 257 = 729
От 468-44: 468 - 44 = 424
2676: 26 76 = 1976