Ответ:345 + 655 = 1000.782 + 218 = 1000.666 + 334 = 1000.1000 − 645 = 355.1000 − 307 = 693.1000 − 443 = 557.802 + 198 = 1000.983 − 895 = 88.1000 − 888 = 112.