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《中小学数学》(初中版)2010年第1-2期刊登了王朝龙老师的《一元一次不等式中有关“不空也不满”的问题》一文.文中总结出:“解决‘不空也不满'问题,关键在于找准‘最后一个单位所得到物品的数量',‘最后一个单位所得到物体的数量'等于‘物品总量减去除去最后一个单位外其他所有单位所得物品的数量的和'.‘不空也不满'是指‘最后一个单位所得到物品的数量'既大于零,又小于规定的这个数”.在教学中,我发现还有另外一种解题思路:“若每一单位都满,则超过总量;除去最后一单位外其他所有单位所得物品的数量之和不足总量.利用这两个关系列出不等式组解
”Primary and secondary mathematics“ (junior high school edition) in 2010 1-2 published Wang Chaolong teacher ”one dollar inequality “ is not empty but also dissatisfied ”problem.“ The article concluded: ”solution Empty and unsatisfied, “the crux lies in finding out the number of items obtained by the last unit, the number of objects obtained in the last unit equals the total number of items minus the number of items removed from all other units except the last one 'And' Not empty or not satisfied 'means' The number of items the last unit received is both greater than zero and less than the required number.' ”In teaching, I found there was another way of thinking: "If each unit is full, then the total is exceeded; the sum of the quantities of the goods removed from all other units except the last unit is less than the total. Use these two relations to list the inequalities