Question

determina toate nr care impartite la5 dau catul 13

Answer 1

n:5=13  + r
r<5 ⇒ r=0 ; 1 ; 2 ; 3 ; 4
n=13x5+r
n=65+0⇒ n=65
n=65+1⇒ n=66
n=65+2⇒ n=67
n=65+3⇒ n=68
n=65+4⇒ n=69

Answer 2

13*5=65 
66:5=13 rest 1
67:5=13 rest 2
68:5= 13 rest 3
68:5= 13 rest 4
Sper ca team ajutat!!!