Răspuns :
57×(120-45)=4275
1)120-45=75
2)75×57=4275
2mod:
120-45×57=4275
B)39×76+39×128=7956
2mod 39×76=2964
39×128=4992
2964+4992=7956
1)120-45=75
2)75×57=4275
2mod:
120-45×57=4275
B)39×76+39×128=7956
2mod 39×76=2964
39×128=4992
2964+4992=7956