Răspuns:
n) 123,23-3,4²⁻¹-12,57=
123,23-3,4¹-12,57=
123,23-3,4-12,57=107,26
b) 29,56-5+14,8·7,2=
29,56-5+106,56=
24,56+106,56=131,12
d) 7,8:2+9,6·3,2=
3,9+30,72=34,62
...
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