851
* 37
------
5957
2553
--------
31487
<span>3) [0,6; 0,7]
т.к., 7/11=70/110
0,6=6/10=66/110
а 0,7=7/10=77/10</span>⇒
[66/110;77/110]
3,5 + 4,5 = 8
+ ........ +
9,5 - 3,5 = 6
= ......... =
13 ....... 8
Примеры
7+52=59
26+52=78
40+52=92
57-40=17
57-35=22
57-6=51
14-10=4
14-1=13
14-4=10