Răspuns :
3612+2144-3321=2435
7855-6123-313=1420
8034+1455-8478=1011
4864-2633+2232=4463, in carte e scris greșit.
5619-3304-1314=1001
7855-6123-313=1420
8034+1455-8478=1011
4864-2633+2232=4463, in carte e scris greșit.
5619-3304-1314=1001