Ответ:864 + 128 = 992.907 − 234 = 673.456 + 347 = 803.1 000 − 589 = 411.673 + 259 = 932.534 : 6 = 89.318 × 6 = 1 908.954 : 9 = 106.756 : 7 = 108.125 × 8 = 1 000.