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Ex 17 urgeeent!!!!! Dau coarana, pe bunee

Ex 17 Urgeeent Dau Coarana Pe Bunee class=

Răspuns :

(257+23)*(41-63)=

280*350=98000

(2+4+6+8+10+12)*(1+3+5+7+9)=

42*25=1050