同学们刚接触鸡兔同笼问题时,往往感到束手无策,如果用画图叠加法解就可以变难为易。例1.鸡兔同笼有9个头,28条腿,鸡兔各有多少只?解:鸡兔同笼有9个头,先假设有鸡9只,那么共有18个腿。画一示意图。 When students first contact the chicken and rabbit cage problems, they often feel helpless, if you use drawing overlay solution can become difficult for the easy. Example 1. Chicken rabbits with a cage of 9 heads, 28 legs, each rabbit how many? Solution: Chicken rabbits with a cage of 9 heads, assuming that there are 9 chicken, then a total of 18 legs. Draw a schematic.