1. : 7 = 1/10 2 = 1/10 52 2 = 3,2 .
2. , 2 . 5, 9, 3 2, 4, 8, 2 2. 57 = 64 = 2.
3. 6 7, 4.
4. 4 6 0,5-0,7. , .
5. 7 1/2 + 1 = 1/2 52 + 1 = 27. 74 = 27
6. 4 , 5.
7. 4 1/20 ( + ) = 1/20 (52 + 28) = 4. 45 = 4
8. 5 , 7 1/2 + 1 = 1/2 57 + 1 = 27, 6. 76 = 27.
9. 5 45 1 = 4 1 = 3. 56 = 3.
10. 6 6 6. 120,5 6 . 65 = 120,5 = 21.
11. 3 63. 37 = 63.
12. - 1-1,5. 7 1,5. 78 = 1,5.
13. 6 1.
14. 5, 6, 1, 8.
15. 8 7, 1-1,2.
16. 8, 1,2, 7, 2, 2
17. :
- 5 1/2 + 2-2,5-3 () + 0,5 ( ) = 1/2 38 + 2,5 + 0,5 = 22
- 7 4.
7. 57 = 22, 77 = 4.
18. 7 7, 0,5-1 .
19. 7, 1, 7, 4, 0,7, 6, 2, 2.
20. , 75 , . 12-13-14, 2-2,5-3
21. 1 0,5-1 2, 0,5, 2.
, .
22. .
, .
.
22. :
|
|
- + = 58 + 4-5 = 62, 23 + 47
- .