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Calculati grupand termenii :
A.1499+368+632+1
B. 5130+253+15+870+747
C. 23451+759+549


Răspuns :

a) 1 499 + 368 632 +1  = 1 867 + 633 = 2 500.
b) 5 130 + 253 +15 870 + 747  = 5 398 + 1 617 = 7 015.
c) 23 451 + 759 + 549  = 23 451 + 1 308 = 24 759.