3. 382+478 706-321 140・6:4 120・3:4 218-5-1 439-0.3 (6+0) ·7 9:9+99

Решим примеры:

1. $$382 + 478 = 860$$
2. $$706 - 321 = 385$$
3. $$140 \cdot 6 : 4 = 840 : 4 = 210$$
4. $$120 \cdot 3 : 4 = 360 : 4 = 90$$
5. $$218 - 5 - 1 = 212$$
6. $$439 - 0.3 = 438.7$$
7. $$(6 + 0) \cdot 7 = 6 \cdot 7 = 42$$
8. $$9 : 9 + 99 = 1 + 99 = 100$$