Ответ:7803 × 404 = 7803 × (400 + 4) = 3 121 200 + 31 212 = 3 152 412.53631 : 9 = 5959.90000 − (37836 + 4070 × 6) = 90000 − (37836 + 24420) = 90000 − 62256 = 27 744.63950 + 28824 : 4 = 63950 + 7206 = 71 156.