1200+456×12-780:20×40:1=


Răspuns :

1200+456×12-780:20×40:1 =
= 1200 + 5472 - 1560 = 5112 
456*12=5472
780:20=39
40:1=40
39*40=1560
1200+5472=6672
6672-1560=5112

Succese!