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calculeaza in doua moduri:
(30+5) : 5=
(30+6) : 6=
(81+9) : 9=


Răspuns :

(30+5):5= 35:5=7 sau 30:5+5:5=6+1=7
(30+6):6= 36:6=6 sau 30:6+6:6=5+1=6
(81+9):9= 90:9=10 sau 81:9+9:9=9+1=10
(30+5):5=35:5=7 SAU 30:5+5:5=6+1=7         (30+6):6=36:6=6 SAU 30:6+6:6=5+1=6    (81+9):9=90:9=10 SAU  81:9+9:9=9+1=10