Ex. 34 te rogggg repedeeee

Răspuns:
12×31= 372 31 ×
12
-------
62+
31
---------
372
372:2=186 372:2=186
2
------
17
16
--------
=12
12
---------
==
186:10=18,6 186:10=18,6
10
----
=86
80
---------
=60
60
-------------
==