Grade one1how many 5 yuan can 0 yuan be divided into? How many 5 yuan is 20 points, and how many 5 yuan is 100 points? I haven't learned multiplication and division. How can I teach children to unders

Grade one1how many 5 yuan can 0 yuan be divided into? How many 5 yuan is 20 points, and how many 5 yuan is 100 points? I haven't learned multiplication and division. How can I teach children to understand? 10 yuan -5 yuan =5 yuan, 5 yuan -5 yuan =0 yuan, 10 yuan can be divided into two 5 yuan.

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Yang Hui (a famous mathematician in Southern Song Dynasty) has a complete set of detailed information.

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