, , .
, :
=38 ( )
=52 ( )
=102 ( )
=100,5 ( )
=28 ( )
()=58 ( )
=41 ( )
–
1. , :
: = – 2-3 ( ) = 100,5 – 2,5 = 98 .
: = ( - ( – )) – 0-1-2 = (28 - (102 - 100,5 )) – 1 = 25,5
, .
2. 6-7 , . = 6 .
3. , 10-13-15 , 1.
, , , 1, .
4. : 1 = 1/2 – 1 = 1/2 52 – 1 = 25 .
. , 1 , , 1/2 ( + ) – 1 = 1/2 (52 + 1 ) – 1 = 25,5
6. 1 1/10 = 1/10 52 = 5,2 . .
12 = 5,2 .
7. 2 , 3, – . 2, 3, 1.
8. : 1/2 ( + ) = 1/2 (41 + 4 ) = 22,5
22,5 /2 – 1 = 10,25
2, 3, 1 10,25 .
25 = 24 = 39 = 38 = 13 = 12 = 10,25
9. :
10. 13, 1 , .
1 = 1/2 13.
3 1-1,5-2 .
11. 1 1,5-2 . 12 = 2 .
. , 0,5 0 . .
12. 1 2 0,5 .
13. ( ) 0,5, 2, 1, 1, 3.
14. : 23 = 1/2 + 1,5-2 ( ) + 0,5 ( ) = 1/2 38 + 2 + 0,5 = 21,5 .
15. : 34 = – = 102 – 100,5 = 1,5 .
16. 4, , 2 , 2, 4 – 0,5-0,7 2, 8.
17. 3 5 0,5-0,7 3 , 9.
18. 2 3 . 16 = 0,5 .
: , .
20. .
* .
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. 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
→