先列式,再计算(1)432是3的几倍?(2)238里有几个6,还余几?
计算下面各题.= = = ﹣= 1﹣=﹣= = ﹣= =
看谁算得又对又快.= = == = =.
3与4的倒数之差是多少?
算一算.+= ﹣= +=+= ﹣= ﹣=
+= 1﹣= += +=1﹣= += ﹣= ﹣=