3:
1) ;
2) 9 , ;
3) 8, ; ;
4) 13, , ;
5) 7 ;
6) 14 ;
7) 8;
8) 12 ;
9) 10;
10) 20 ?
, .
1. .
2. , .
9+5 8+6
7+4 5+9
6+8 4+7
3. .
9+6 8+7 4+8 3+9
8 9 12 15
123 168 135 112
4. .
9+7 178
145 6+7
8+5 146
113 8+8
II
1
1. . 11, 1, 88, 90, 33, 50, 4, 10, 7. | |||
2. . 5 . 4 . = 76 = . . | |||
3. . 30 + 40 = . + . = . = | |||
4. . 20 + 3 = 76 4 = | |||
5. . + 20 = 70 50 = 40 |
2
1. . 8, 77, 14, 0, 60, 99, 6, 22, 29. | |||
2. . 7 . 6 . = 39 = . . | |||
3. . 50 20 = . .= . = | |||
4. . 50 + 2 = 69 3 = | |||
5. . + 30 = 50 40 = 20 |
1
1. . 60, 30, 20, 90, 70. | |||
2. , 7 . 5 .; 8 . 2 . | |||
3. . 23 = + 85 = + | |||
4. . 45 * 43 77 * 17 83 * 38 | |||
5. <, > =. 90 30 * 80 20 + 34 * 24 + 20 |
|
|
2
1. . 50, 10, 70, 40, 60. | |||
2. , 6 . 3 .; 9 . 6 . | |||
3. . 37 = + 62 = + | |||
4. . 55 * 15 37 * 73 16 * 62 | |||
5. <, > =. 44 + 30 * 14 + 60 40 * 70 20 |
21 100
1
1. . 1 ; 1 6 ; 1 ; 8 , 20 . | |||
2. . 95 = + 77 = + | |||
3. . 40 + 30 = 70 20 = 80 + 9 = 76 6 = | |||
4. . 60 , 20 . ? | |||
5. . + 30 = 60 40 = 10 50 + = 59 8 = 90 |
2
1. . 1 ; 1 8 ; 14 ; 54 ; 24 . | |||
2. . 95 = + 77 = + | |||
3. . 50 + 40 = 80 60 = 83 3 = 40 + 8 = | |||
4. . 40 , 30 . ? | |||
5. . + 20 = 80 70 = 10 30 + = 37 4 = 60 |
|
|
1
1. . 37, 93, 85, 17, 34. | |||
2. 37 + (14 8) . | |||
3. . 70 30? | |||
4. . 22 , 8 . ? | |||
5. . 50 20 14. |
2
1. . 37, 93, 85, 17, 34. | |||
2. 80 (30 + 14) . | |||
3. . 40 60? | |||
4. . 38 , 18 . ? | |||
5. . 80 12 8. |