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1. Efectuează: a) 24 x 56+ 76 x 12-728:13= 686:7+42 x 6-792:22 = b) 1 432 + (1 690 15 x 43) = 6 000 (40 x 13+56 x 9) = vivit c) [(76 x 48) - (52 × 14)]: 10 = 2876-[(576:8)+(912:6)]=
[tex]calculeaz[/tex]


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