REFUERZO OPERACIONES COMBINADAS

1. 35+4 (52) (143) 2 =

2. 4 [3+5 (2+1) 4] +30 : 6 =

3. 7 (142) 4 (5+7) +34 =

4. 8 (5+40 : 2) 4302022 =

5. 40 [543 (2+3) +5 3 =

6. 43:2 (4+7) 2+3 (5+235) =

7. 3058:4 [20:4+ (86) 2 (42) 3] =

8. 340120:3 [30+201085] 306 =

9. [(3+2) 8 (3+1) 9] 23 [(64) 2 (53)] =

10. 854 (3+2) (40:8) 3 =

11. 925 [(5+4) 12+202] +3204 =

12. [(2+3) 5+4 (30:5+1)] 289 =

13. (4+1) 35 (823) +120402 [(3+1) 535] =

14. (4+32) 3 (4012) 4+ (324) 2 =

15. [(7+5) 3+42] 314412 =

16. (14+7+28) : 7 [(10+2) :3] : 2 =

17. [(4+2) 3 (3510) :5] 2 [(14+7) 33] 4 =