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calculati folosind metoda factorului comun:
e)1725×707+324×707-321×707;
f) (111+222+333+444):111+10
Ajutati-ma va roooog


Răspuns :

707x(1725+324-321)= 707x1728= 1221696 1+2+3+4+10=20
e)1725×707+324×707-321×707=707(1725+324-321)=707(1725+3)=
=707×1728=1221696
f) (111+222+333+444):111+10=
=(1+2+3+4)+10=10+10=20