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Brandusa12
a fost răspuns

Efectuati folosind factorul co
mun:600+700+500
14+28+49+63
25+55+45+15

Răspuns :

600+700+500=100(6+7+5)=100x18=1800
14+28+49+63=7(2+4+7+9)=7x22=154
25+55+45+15=5(5+11+9+3)=5x28=140
CarMina03
600+700+500=100×(6+7+5)=100×18=1800
14+28+49+63=7×(2+4+7+9)=7×22=154
25+55+45+15=5×(5+11+9+3)=5×28=140