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450*11,5+125*28,5=5175+3562,5=8737,5 zł
2.
mnożenie.
0,8*45=36
0,5*2,5=1,25
0,75*6,21=4,6575
(450*11,5zł)+(125*28,5zł)=5175zł+3562,5zł=8737,5zł
zad.2
wykonujemy mnożenie
wykonujemy mnożenie
0,8*45=36
0,5*2,5=1,25
0,75*6,21=4,6575