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afla catul si restul impartirilor , apoi verifica prin proba. a)439:13 ; 678: 24 b) 856:19 ; 704:27 c) 760:39 ; 809:57 d) 607:52 ; 937: 61 .

Răspuns :

a. 33 rest 10
28 rest 6
b. 45 rest 1
26 rest 2
c. 19 rest 19
14 rest 11
d. 11 rest 35
15 rest 22

verificare:
a. 33×13+10=439
439=439
28×24+6=678
678=678
b. 45×19+1=856
856=856
27×26+2=704
704=704
c. 19×39+19=760
760=760
14×57+11=809
809=809
d. 52×11+35=607
607=607
15×61+22=937
937=937