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11 cat mai repede va rooooog

11 Cat Mai Repede Va Rooooog class=

Răspuns :

a) 4×(7+11+22)=4×40=80
5×(30+25+15)=5×90=450
b) 9×(50-35-12)=9×(15-12)=9×3=27
7×(45-32-7)=7×(13-7)=7×6=42