. |
= 15 –
= 24 –
= 40 –
= 100 -
= 18 –
= 11 –
= 41 –
= 18 –
= 9,5 –
= 27 – 2 = 44 –
= 44 – = 10 –
= 24 – = 38 –
1 = 20 – = 52 –
2 = 17 – = 13 –
1 = 48 – = 19 –
= 10 –
( 1) - 3
( ) - 2
( C) - 2
:
( ) 25-30% 3 30% = 1
( 1) 0-30% 3 30% = 1
( ) 30-70% 3 30% = 1
, . .
1. , :
( ) 15. = 15
( ) 25. = 24
( ) 40. = 40
2. , ( - ) 16-19. = 18
3. ( ) 100. = 100
- 1,5-2-2,5, , 1. 1 = 2
1/2 1 = 1/2 2 = 1. 1 = 1
2, , 1, 1. 1, 1.
:
2,5-3-3,5-4. 1 2 . 1 ( 3).
1 2 ( 3).
:
() 0-0,5-1-1,5. 1 . , 1 ( 2).
5. 1/3 + = 1/3 18 + 1 = 7. 1 = 7
1 = 1/3 + 1,5-2
6. 1/3 + 0,2-0,3 = 1/3 7 + 0,2-0,3 = 2,5. 2 = 2,5.
- 1/3
- – 1, – , , 1 – 7- .
- 2-2,5-3
, , .
2 .
7. + = 18 + (3 30%) = 19. 1 = 19. 1 , 2.
8. + = 11 + (3 30%) = 12.
9. , , :
12/2 = 6. 23 = 6. 1/3 2 12/3 = 4.
1/2 1. 23 = 1/2 12 – 1 = 5.
: (, ), .
, .
3 , 2 2.
10. = 19, 1,5-2-3. 2 , , , 1.
1 – 6. 2 – .
11. .
1 + 0,5 + (1,5-2-2,5) = 13 + 0,5 + 2 = 15,5.
:
) 1,5-2-2,5, :
) 2-2,5-4, :
) 0,5-1-1,5-2, :
.
1 = 41. .
1 = 15,5, 1 = 41.
, 1. 1 1. 1 1/3 = 1/3 (13 + 0,5) = 4,5, . 1 = 4,5.
2. 2 = 2.
6-9-10.
. 1 = 12 = 9.
, . 2 .
12.
1 1/2 + 1-1,5-2 = 1/5 12 + 1 = 7. 2. 12 = 7.
1 1/4 + 0,5 = 1/4 12 + 0,5 = 3,5. 13 = 3,5.
1/4 .
. 1/4 12 + 0,5. : 1/4 12 – 0,5.
, 2, 3, .
13. 1,5-2-2,5-3 1 . 23 = 2.
0-1-2-2,5:
34 = 1.
4, 0,2-0,5-0,7. , 0,5, 4.
14. :
1 + = 48 + 3 = 51
+ = 52 + 2 = 54
( + ) – (1 + ) = 54 – 51 = 3
, 3, . 1/3 , 1/3 , 1/3 3 = 1.
13 + 1/2 = 24 + 1/2 3 = 25,5. 13 = 25,5.
15. + 1 = 13 + 1 = 26,5. 12 = 26,5. 3 , 3 ( ). 3 1-2-3.
, 13 = 12.
16. 0,5-0,7-1 4, 3, 2.
17. 1 .
(1 + ) – ( + ) = (48 + 3) – (38 + 2) =11
: 2, 2 2
11 – (2 + 2 +2) = 5 – .
, 3-3,5. 3-3,5, ( 4).
5 2/3 , . 3 – , 2 – .
18. .
12 1-2. .
1 1-2 1 , , 2. 2-3, 2-5.
, .
1. 3, 27., 4. 34 = 27.
2. , . 45 = = 16.
3. , . 54 = = 18.
4. , . 54 = = 60.
- 1-1,5-2. 45 = 1,5.
0,5-1 . , .
2,5-3-4.
, , . 4.
6. 1/3 + 0,5-1 = 1/3 18 + 0,5 = 6,5 34 = 6,5.
7. 1/3 + 1-1,5 = 1/3 18 + 1 = 7 35 = 7.
4 5, 2-2,5. 4, 2-2,5, 5.
8. 1 + = 20 + (3 30%) = 21. 45 = 21. 5 .
9. + = 11 + (3 30%) = 12.
10. 1/2 = 1/2 12 = 6. 5 6, 6.
6 6 , . 65 = 3 = 1.
5 , 4.
11. :
) 6 – , 1/2 – 1 = 1/2 12 – 1 = 5. 1-2, 12 – 1-2. 46 = 5
) 4 0,5-1, , 13 – 0,5-1, 1/4 – 0,5-1 = 1/4 12 – 0,5 = 2,5. 47 = 2,5.
12. = 9,5. 4 = 9,5.
13. :
) 4 ( );
) = 10. = 10;
) = 10, ;
) 1 – 2 = 48 – 44 = 4. 4, 1. 1 = 4;
) 1, . 4 = 6.
14. :
) 6 = 13;
) = 24.
2. 62 = 13, 2 = 24.
15. 2 6, 0,5-1-1,5. 2, 0,5-1-1,5, 6, 7, 5.
16. , 1,5-2-2,5. 67 = 2.
, , 7, 8.
17. 1. 78 = 1.
0,3-0,5-0,7 – .
3 , 5, 9.
8, 9. 9 .
: 0-1-2.
18. :
- ( + ) – 13 ( ) = (52 + 2) – 25,5 = 28,5. 46 = 28,5.
- 5 , . 56 = 32.
, , , .
19. + 1 = 46 + 1 = 47.
5 6, 1-2-3. , 67 = 23.
20. 5, 7. 5 .
21. 3. ( 17 - )
– .
4-5-7. 2-3-4.
. 1 ( 3-3,5-4 ), , . , . 1-1,5-2.
: 5 2-3 – . 6 .
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