把一箱小皮球分成几份,知道小皮球数比20个多,比30个少,它们被分后的份数和每份的个数同样多。这箱小皮球有多少个?8T9f+K+Q
算式:提示/a,s'p9[1~1O,h20<25<308T9f+K+Q
答;这箱小皮球有5y*a4j.c*B8u8R0K个。8T9f+K+Q