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ajutorrrrr ex 18 va rog urgent

Ajutorrrrr Ex 18 Va Rog Urgent class=

Răspuns :

53×(61+39)=
53×100=5300
37×(23+54)=
37×67=2479
115×(63-1)=
115×62=7130
25×(31-16-8)=
25×7=175
79×(137-37)=
79×100=7900
89×(45-28)=
89×17=1513
49×(74+12)
49×86=4214