(54 ). |
http://www.newsewing.com/view_post.php?id=73
. , . , , , .
, 54 ( 108), , . , , , 60 ( 120), . , , .
, .
- . , . – , , .
: , , . , , .
, , , . , , . , – , . !
( 54)
:
: . .
: , , . , . , , .
, , , , – . , , , , , .. . . , , , , , . – , . , , , .
, , , , , .
, , . :
| () | 100 | ( ), . |
| () | 21 | , . |
| () | 39 | , . , . |
| () | 19,5 | , . |
| () | 19 | , , (). |
|
1- (I) |
49 | , , . |
| 2- (II) | 54 | , . |
| () | 12 | . . . |
| () | 47 | . |
| () | 60 | , , . |
| () | 41 | . . |
| () | 36 | . |
| () | 12,5 | : . , . |
| () | 17 | , , . |
| () | 13 | . |
| () | 29,5 | . |
| () | 35 | . |
| () | 44 | . |
| () | 11 | . |
| () | X | . |
| (II) | 23,5 | . |
| () | 58 | . |
| () | 34 | . |
| () | 34 | ( ). |
| () | 19 | . |
|
II 4-5 , - 3 - 2 . |
||
.
(. 1).
1. .
(100 ) .
2. .
18 – 19 . 18,5 .

5. , , : , , .

6. .
(19,5) 0,5 ( ) 1 :
1 = + 0,5 = 19,5 + 0,5 = 20 .

7. .
1 (12,5) 1 2:
1 2 = : 2 – 1 = (12,5: 2)-1 = 5,25 .
2 2 1.

8. .
1/3 (19) 1 1:
1 = 1/3 +1 = 19:3+1=7,3.

9. .
1 (41) (39) 2:
12 = – = 41 – 39 = 2 .
2 . ( ).

10. .
2 , 15 ( (13) 2 ), (. . 12). 1.
21=13+2=15.
2 1 .

13. 1, 2 , 12, .
.
2 21 1/3 ;
2=13:3=4,3.
8 1.

14. 21 2 2. 1 2 8 3. 31 .

15. .
2 2 3. 3 2 .
3 1 4, 4 ( . 16) .
1 1/2 6 (60+3=63 ) II (54+4=58) 2:
1, 2 = (63-58) : 2 = 2,5. 4 2 .

18. .
, ( , 2) 2-3 1. 1 2 . 1 1 2. 2 .
1 3. 3 5, - 3. 3 4 4, 3 - 3 4.
5 1 6 7, 4 4 ( . 20).
.
22.
1 . 1 45—50 3. 3 . 2, 2, 2 . 4, 8, 5.
4 II (54 + 4) ( 1 = 20 ) ( 12,5 ) 5:
45=58-20-12,5=25,5.
5 , 9.
5 (12,5) 1 6:
56 = 12,5:2+1=7,25.
6 10 6.
8 (44 ) 3
3 1/3 !(19) 1 4:
34=19:3+1=7,3.

27. .
3 1/3 (19) 1,5 5:
35 = 19:3+1,5=7,8.
4 5 , 1. 1 1,25 02. 5, 02 4 .

28. .
II (54) CI (49) 1.
1 = II – I = 54 - 49= 5 . , , 5 . 1.
1 1 , , 14 2:
12 = 14.
5 1/4 53 (4,5 ) 03. 03 — . , (. .54)
03 3 .

35. .
2, , , ( 13) 4. 4, 03
6 , .
10 1,5 11. 6 11 .
11 1 12. 8 12 .
6 1/2 (60+3=63 ) II (54+4=58) 7:
6 7 = (63-58) : 2 = 2,5.
12 7 .
3 , ( , 57), 2-3 4. 7 4 . 4 1 5.
3 2 6. 6 5 .
75 8. 8 , 13 8. 8 6 , 8 - 2 5 9.
13 1,25 14 15, 5 9.(. .42)
, . , , . ( ), , .
. , , , , . , , . , ! !
| : | / |