Răspuns :
a) 15+43-27 = 31
b) 413 - 395 + 11 = 29
C) 642 +423 - 999 = 66
d) 725 - 696 +37 = 66
e) 2138-809 +57 = 1386
f) 521 - 99 +17 - 47 = 392
a) 15+43-27 = 31
b) 413 - 395 + 11 = 29
C) 642 +423 - 999 = 66
d) 725 - 696 +37 = 66
e) 2138-809 +57 = 1386
f) 521 - 99 +17 - 47 = 392