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Cât face: 40+5×[45:9+5×(30+8×10)] =?

Răspuns :

40+5X45impartit la 9+5x 110=40+5x5+550=40+25+550=75+550=620
40+5x[45:9+5x(30+8x10)]=
=40+5x[9+5x(30+80)]=
=40+5x(9+5x110)=
=40+5x(9+550)=
=40+5x559=
=40+2795=
=2835