第2个回答 2012-05-25
100,200,300,400,500,600会有12个0
2*5,12*15,22*25,32*35,42*45,52*55,62*65,72*75,82*85,92*95会有10个0
102*105,...192*195会有10个0
202*205,...292*295会有10个0
302*305,...392*395会有10个0
402*405,...492*495会有10个0
502*505,...592*595会有10个0
10,20...90会有9个0
110,120...190会有9个0
210,220...290会有9个0
310,320...390会有9个0
410,420...490会有9个0
510,520...590会有9个0
全部加起来= 12 + 10 + 10 + 10 + 10 + 10 + 9 + 9 + 9 + 9 + 9 + 9 = 126 个