Помогите срочно.
Реши примеры на время.
1. 6800 : 170 + 60 ⋅ 120 =
2. 420 : 30 – 760 : 190 =
3. 130 ⋅ 4 + 650 : 50 =
4. 30 ⋅ 180 + 120 ⋅ 9 =
5. 40 ⋅ 150 – 180 ⋅ 3 =
6. 90 ⋅ 110 + 760 : 40 =
7. (8 ⋅ 170 – 6 ⋅ 170) : 20 =
8. 50 ⋅ 130 + 9 ⋅ 140 =
9. 5 ⋅ 160 + 7500 : 150 =
10. 17 ⋅ 40 + 18 ⋅ 70 + 60 =
11. 60 ⋅ 110 – 1020 : 170 =
12. 40 ⋅ 170 + 260 : 20 – 6 =
13. 950 : 19 + 20 ⋅ 12 + 9 =
14. 1020 : 60 + 1280 : 8 =
15. 4 ⋅ 180 – 840 : 7 + 30 =
16. 70 ⋅ 140 – 30 ⋅ 15 =
17. 12 ⋅ 80 + 720 : 40 + 20 =
18. 8 ⋅ 140 + 14400 : 180 =
19. 30 ⋅ 19 – 40 ⋅ 14 + 5 =
20. 13 ⋅ 90 + 20 ⋅ 140 =
21. 40 ⋅ 110 + 190 ⋅ 3 + 80 =
22. 6 ⋅ 190 – 770 : 110 =
23. 19 ⋅ 50 + 11900 : 170 =
24. 7800 : 130 + 170 ⋅ 4 =
25. 190 ⋅ 9 – 18 ⋅ 80 + 30 =
26. 960 : 80 + 60 ⋅ 160 =
27. 70 ⋅ 110 – 9 ⋅ 190 + 50 =
28. 30 ⋅ 11 – 6500 : 50 =
29. 60 ⋅ 180 – 950 : 190 =
30. 30 ⋅ 18 + 800 : 16 – 40 =
31. 1120 : 70 + 80 ⋅ 17 =
32. 80 ⋅ 13 + 160 ⋅ 8 – 10 =
33. 20 ⋅ 15 + 70 ⋅ 120 – 40 =
34. 40 ⋅ 130 + 80 ⋅ 120 =
35. 70 ⋅ 19 + 70 ⋅ 17 – 20 =
36. 80 ⋅ 150 – 16 ⋅ 80 + 10 =
37. (13 ⋅ 70 – 130 ⋅ 5) : 20 =
38. 1440 : 18 + 13 ⋅ 90 – 40 =
39. 11 ⋅ 70 + 170 ⋅ 6 – 50 =
40. (40 ⋅ 18 – 40 ⋅ 15) : 30 =
41. 70 ⋅ 16 + 520 : 40 – 70 =
42. 19 ⋅ 30 + 1260 : 18 – 50 =
43. 1170 : 9 + 600 : 5 – 30 =
44. 20 ⋅ 16 + 16 ⋅ 80 – 2 ⋅ 10 =
45. 40 ⋅ 15 + 14 ⋅ 40 + 5 ⋅ 10 =
46. 14 ⋅ 40 – 520 : 13 + 50 – 10 =