1 (. 82) -
2 (. 82) -
) , 50: , 8; ) , 20, 10 ;
) , 20 - , 7;
) , 12, + 7.
3 (. 82)
7 (. 83)
.
4696-1548 = 3148; 3343 = 1002; 512:8 = 64.
11 (. 83) -
6. : . 83 8, 10
: .
: ''; .
2.
:
35 10 ;
4 700 100 ;
480 225;
360 128;
1 000 632;
25 6 ;
72 12 ;
: 3 000 013, 400 018, 35 001, 470 022, 51 004.
120, 35?
:
) 18 1 000 . 7 . .
) 1 3 , 25 . ?
1 (. 84)
- 12 , 7 , - 12 , 7 (19 ).
| - | |
| 12 | 5 |
| ? | 12 |
6* (. 84)
. . , 5 6 , 168 , 16 8 .
5(. 84)
3 (. 84)
) 5004001; ) 2030000; ) 42005; ) 3002.
4 (. 84)
2 (. 84)
12 (. 85)
7 (. 85)
8 (. 85)
2880 .
?, 3 . 8000
?
2880:3 = 960 ()- ( )
:
960 4 = 4160 ()
8000 - (2880 + 960) = 4160 ()
8000 - 2880 - 960 = 4160 ()
8000 - 960 - 2880 = 4160 ()
10 (. 85)
, 4 (8 ), .
16 2 (44 = 16). 4 . 4 2 (16 : 4 = 4). , , . 8 2.
|
|
|
6. : 9 (2 .), 11, . 85
1
1. :
_________________________________________
___________________________________
__________________________
2. :
57 400 = ___________________________________________
8 000 507 = ____________________________________________________
30 = ______
61 9 = ________
195 = ____ ___
, 320 , . 42 /, 38 /. ?
: __________________________________________.
5. :
8 5 . .
: ____________________________________.
|
|
|
2
1. :
_________________________________________
___________________________________
__________________________
2. :
43 900 = ___________________________________________
6 002 007 = ____________________________________________________
25 = ______
53 8 = ________
257 = ____ ___
. 3 . 65 /, 70 /. .
: __________________________________________.
5. :
9 3 . .
: ____________________________________.
|
|
|
:
: ; .
2.
8 020 80
8 8 000
8 2 82
8 802
:
) 240 , 2 . 1/4 . ?
) 150 , 3 . , , ?
4 (. 87)
. . :
2*37 < 2845 (0, 1, 2, 3,4, 5, 6, 7, 8).
*1*3>6132 ( 6, 3, 4, 5, 6, 7, 8, 9; 7, 8, 9, ).
**** > 5263 ( , 6 7, 8, 9; 5, 3, 4, 5, 6, 7, 8, 9; 5 2, 7, 8, 9; 5, 2, 6, 4, 5, 6, 7, 8, 9).
4486 < 44*1. , , 9.
5*(. 87)
2. (8 - 6 = 2.) 5 . (10: 2 = 5.)
