2, 3, 5* (6 , ).
3.
| ? | 175 | |
| ?, 8 | ? |
5*
: 7:4 = 1 (. 3). : 35:4 = 8 (. 3). : 4-8 = 32. 2.
: 4 5. . : 42: 5 = 8 (. 2). : 25:5 = 5.
6 . , . 3 8 (3∙6=18)
6. .
6. .
7. .
8. .
8, 9.
113. . .(. 94-95)
: 1) ;
2) .
3) .
1. .
2. .
3. .
4. .
5. .
1, 2, 6, 3, 5, 4*, 7.
2. .
I.
1) 267 2 = 534 ()
2) 534 + 267 = 801 ()
II.
2673 = 801 ()
4*. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,14, 15, 16, 17, 18, 19, 20 .
120,219,318. ? ( , , 21.) ? (10.) 1 20? (21-10 = 210.)
1 20. (2, 4, 6, 8, 10, 12, 14, 16, 18, 20.)
?
(2+ 20) 5 = 225 = 110
. (1, 3, 5, 7, 9, 11, 13,15,17, 19.)
.
(1 + 19) 5 = 100
? (110i + 100 = 210.)
6. . , .
6. .
7. 40 ? (400.) 300 ? (300.) . (400 > 300.) . .
7. .
8. .
8, 9.
. . .(.96-97)
: 1) ;
2) .
3) .
.
.
3. .
|
|
|
6*, 7.
6. ? (6.) ? (2.)
333333
3 . ? (3 3 3; 3 3 ; 3 .)
7. : 0, 2, 4, 6, 8, 2 ( ).
64* 0, 2, 4, 6, 8.
*00
*44 ( 0 ).
6*5 - 2.
.
