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Grupeaza convenabil numerele si calculeaza:
A) 23 415+11 832+16 585+9 068
B)18 870+24 590+10 410+41 130
C)14 236+30 645+21 264+50 255+12 242+17 758


Răspuns :

a)
23415+
16585
11832
9062
_____
60894
b)
41130+
24590
18870
10410
______
95000
c)
50255+
30645
21264
17758
14236
12242
_______
146400
23 415 + 832 +16 585 + 9068=
23 415 + 832 = 24247
16585+9068=25653
25653+24247=49900