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Plasati paranteze astfel incat sa obtineti egalitati adevarate:
240-120+80=40
200+80:40=7
5x38-70:8-6=9
630:7-2x9x25=1800
128+49:42:6x8=184
180:300-30x9+199=205
Cine stie,ajutati-ma!!


Răspuns :

240-(120+80)=40
(200+80)÷40=7
240-(120+80)=40
(200+80):40=7
[(5×38)-70]:8-6