Răspuns:
A+2.560=4.230
A=4.230-2.560
A=1.670
B+8.340=15.687
B=15.687-8.340
B=7.347
C-723.415=31.324
C=723.415+31.24
C=723.789
D-234.475=131.057
D=234.475+131.057
D=365.592
24.500+E=68.200
E=68.200-24.500
E=43.700
22.325+F=33.000
F=33.000-22.325
F=10.675