Răspuns:
1. 1-A
2-O
3-C
2. 263- doua sute saizeci si trei
409-patru sute noua
7 50-saptea sute cincizeci
Trei sute saptezeci - 370
Sase sute douazeci si Sase-626
O suta unsprezece - 111
3. 309,315,699,759,970
324,323,321,319,318
518,523,545,563,571
4.632>362
918<981
560=560
279< 972
366<663
700<701
889<898
473< 743
820< 821
