Răspuns :
8726-4315=4411
4411+4315=8726
4152+2641=6793
6793-2641=4152
7658-2143=5515
5515+2143=7658
3344+5555=8899
8899-5555=3344
Răspuns:
8726-4315=4411
4411+4315=8726
4152+2641=6793
6793-2641=4152
7658-2143=5515
5515+2143=7658
3344+5555=8899
8899-5555=3344
Răspuns: