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In trei zile s-au vandut : 12,48 m , 21.52 m si 42,5 m de stofa care costa 20,5 lei metrul.
Calculati in doua moduri suma incasata


Răspuns :

1. 12,48m×20,5lei=255,84lei
21,52m×20,5lei=441,17lei
42,5m×20,5lei=871,25lei 255,84+441,17+871,25=1568,26lei
2. 12,48+21,52+42,5=76,5m
76,5m×20,5lei=1568,26lei