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a fost răspuns

Rezolva prin doua procede:5×(4+3)= ;7×(8-3)=;(6+2)×7=;(9-4)×6=

Răspuns :

Ramona19852007
5×(4+3)= 5×7=35
5×4+5×3=20+15=35

7×(8-3)= 7×5=35
7×8-7×3=56-21=35

(6+2)×7=8×7=56
6×7+2×7=42+14=56

(9-4)×6=5×6=30
9×6-4×6=54 - 24=30.

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