Răspunsuri

2014-09-28T12:59:39+03:00
729= 7 x 100 + 2 x 10 + 9 x 1
7029= 7 x 1000+ 2x 10 +9x1
702090=7 x 100000 + 2 x 1000+ 9 x 10
7020900 = 7 x 1000000 + 2 x 10000 + 9 x 100
1 5 1