Ƞ
|
- |
.3 (20+2)0 |
1 |
|
31÷36 % 16÷20 %. |
1) |
60÷95 /2 17,6÷11,7 2/ |
2) |
10÷15 |
|
1÷2 |
|
|
| |||||||||
-10 |
10 |
20 |
30 |
-10 |
10 |
20 |
30 |
-10 |
10 |
20 |
30 |
1,5 |
30 |
20 |
10 |
5 |
2 |
1 |
30 |
7 |
2 |
1 |
30 |
|
-10 |
0 |
+20 |
, |
120 |
90 |
60 |