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calculeaza in doua moduri produsele.
58×(45+26)=
(78-39)×25=


Răspuns :

58*71=4118
(58*45)+(58*26)=4118
si
39*25=975
(78*25)-(39*25)=975
 58 x(45 + 26 )=
58 x71
4118

58x(45+26)=
58x45 +58 x26
2610 +1508
4118

(78- 39)x 25 
39x 25
975 

(78-39)x25
78x25 -39x25
1950-975
975

Sper ca e bine !Succes!