5.299 Выполните действия: 1) 10 351 – (12 617 : 31 + 208 . 43); 2) 35 . 309 + 11 638 : 23 – 9321.

1) 10 351 – (12 617 : 31 + 208 ⋅ 43)

1. 12 617 : 31 = 407
2. 208 ⋅ 43 = 8944
3. 407 + 8944 = 9351
4. 10 351 – 9351 = 1000

2) 35 ⋅ 309 + 11 638 : 23 – 9321.

1. 35 ⋅ 309 = 10 815
2. 11 638 : 23 = 506
3. 10 815 + 506 = 11 321
4. 11 321 – 9321 = 2000

Ответ: 1) 1000; 2) 2000