4. 629-x=356,x=629-356,x=273
5. x+496=567,x=567-496,x=71
6. 329-231=98
7. 423-191=232
8. televizoare=429
cate calculatoare?429-145=284
cate s-au vandut in total?
429+284=713
9.mita= doli-145
doli=cip-183
cip=619
inlocuim
doli=619-183=436
mita=436-183=291
