Răspuns:
A= -3+11-19
A= 8-19
A= -11
B= -6+2+11-19
B= -4+11-19
B= 7-19
B= -12
C= 27-49-18+27-28
C= -22-18+27-28
C= -40+27-28
C= -13-28
C= -41
D= 1-2+3-4+5-6+7-8+9
D= -1+3-4+5-6+7-8+9
D= 2-4+5-6+7-8+9
D= -2+5-6+7-8+9
D= 3-6+7-8+9
D= -3+7-8+9
D= 4-8+9
D= -4+9
D= 5
E= 27-49-18+27-28
E= -22-18+27-28
E= -40+27-28
E= -13-28
E= -41
Punctul F este la fel ca D