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(625+285)-489= (375+286)-(600-473)= (969-895)+(723-547)=

Răspuns :

1)(625+285)-489=910-489=421
2)(375+286)-(600-473)=661-127=534
3)(969-895)+(723-547)=74+176=250
SPER CA AM AJUTAT!
a) =421
b) =661-127
    =534
c) =74+296
    =250