II. .
1. , , .
7 8 9 9 8 6 8 9 10
2. , .
, 244 , 2 , 4 4 ; 24, 244; : 200 + 40 + 4; 243 245; 244 ; , (2, 4).
3. , , , , , . .
:
56: 8 42: 7 40: 5 18: 6 6 9
8 9 4 7 9 7 4 8 49: 7
78: 6 | ||||||||
3 16 | 4 12 | |||||||
56: 4 | 84: 7 | |||||||
15 4 | 19 3 | |||||||
75: 3 | 42: 3 |
, , .
600? 700? 900? 200?
350? 270? 780? 810? 560?
III. .
( ) . .
1 2.
1:
8: 2 = 4
800: 2 = 400, . . 8 .: 2 = 4 .
48: 8 = 16
480: 3 = 160, . . 48 .: 3 = 16 .
.
IV. .
1. . 3 , , .
1/5 200
?
200 5 = 1000 ()
4 :
1 | - | |
. 2 | 12 . | |
. 4 | ? . |
2. 5 6. , , .
V. .
. , ?
. 1000.
. ?
|
|
. , , , .
: . 67, 5.
61.
: 240 3, 203 4 (. 68)
: ; ; .
I. .
II. .
1. :
50 + 10: 5 = 12
40 12 3 = 84
44 44: 22 2 = 0
2. :
80 | 60 | 20 | 70 | 0 | 270 | 60 | 80 | |
9 | 0 | 1 | 9 | 80 | 3 | 9 | 7 | |
3. 2 .
10 : 560, 690, 700.
100.
4. .