7.(3 002 – 786 + 414) 9 101 – (470 – 309) · 8 8 204 – (360 + 840) : 4

Решим примеры:

1. $$7 \cdot (3 002 – 786 + 414)$$
   1. $$3 002 - 786 = 2216$$
   2. $$2216 + 414 = 2630$$
   3. $$7 \cdot 2630 = 18410$$
2. $$9 101 – (470 – 309) \cdot 8$$
   1. $$470 - 309 = 161$$
   2. $$161 \cdot 8 = 1288$$
   3. $$9 101 - 1288 = 7813$$
3. $$8 204 – (360 + 840) : 4$$
   1. $$360 + 840 = 1200$$
   2. $$1200 : 4 = 300$$
   3. $$8 204 - 300 = 7904$$

Ответ: 18410, 7813, 7904.