Вычисляем:

1. a) $$745 + 476 = 1221$$

2. б) $$472 - 398 = 74$$

3. в) $$2842 : 7 = 406$$

4. г) $$342 \cdot 25 = 8550$$

5. д) $$47 \cdot 24 - 39 = 1128 - 39 = 1089$$

6. e) $$840 : 12 + 15 = 70 + 15 = 85$$

7. ж) $$24 \cdot (327 - 276) = 24 \cdot 51 = 1224$$

8. з) $$(247 + 578) : 25 = 825 : 25 = 33$$