一篮子鸡蛋,2个2个拿剩1个,3个3个拿剩2个,4个4个拿剩3个,5个5个拿剩4个,6个6个剩5个,7个7个剩6个.求算式?
问题描述:
一篮子鸡蛋,2个2个拿剩1个,3个3个拿剩2个,4个4个拿剩3个,5个5个拿剩4个,6个6个剩5个,7个7个剩6个.求算式?
答
一篮子鸡蛋,2个2个拿剩1个,3个3个拿剩2个,4个4个拿剩3个,5个5个拿剩4个,6个6个剩5个,7个7个剩6个.求算式?