1. \( 273150 : 45 = 6070 \)
2. \( 449920 : 64 = 7030 \)
3. \( 479120 : 53 = 9040 \)
4. \( 923400 : 19 = 48600 \)
5. \( 676800 : 18 = 37600 \)
6. \( 899200 : 16 = 56200 \)
7. \( 90000 - 508 \times 173 = 90000 - 87844 = 2156 \)
8. \( 324 - 250 - 689 = 74 - 689 = -615 \)
9. \( 5001 - 272 \times 16 = 5001 - 4352 = 649 \)
Ответ: 6070, 7030, 9040, 48600, 37600, 56200, 2156, -615, 649.