Ответ:6000000 + 9000 + 1 = 6009001.500400 − 500000 + 90 = 400 + 90 = 490.200730 − 200000 + 90 = 730 + 90 = 820.8700004 − 700000 = 8000004.249000 − 9000 = 240000.200000 + 5000 + 700 = 205700.