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descopera regula si completeaza sirul cu 2 numere
1005,2010,4020
400400,200200,100100
1000000,200000,40000
99,909,9009


Răspuns :

1)8040,16080 2)50050,25025 3) 8000,1600 4) 90009,900009
1005; 2010; 4020; 8040; 16080

400400; 200200; 100100; 5050; 2525

1000000; 200000; 40000; 8000; 1600

99; 909; 9009; 90009; 900009