Calculation

It’s almost over the Chinese New Year, and the mother company sent a large bag of grapefruit.

As soon as I saw my mother carrying a fragrant and large grapefruit, I thought it must be delicious, and the saliva went straight down. Mom said gently, little devil! Do you want to eat it? I replied with a milky voice: Yes. "That's okay, but you have to answer a question first, can you?" Mom asked. I am happy to say: OK! Mother said in a serious way, to 4 grandparents, 4 brothers, 4 sisters, we have 4 left, is this bag of grapefruit enough? I quickly calculated it in my heart, and I need a total of 16. Then, I poured out all the grapefruits and carefully counted them and found that there were 16 in total. Then, I replied confidently: exactly. Mom said, why? So, I explained to my mother with confidence, the number of grapefruit we need is 4x4=16. Just now, I counted it. This bag is exactly 16. Mom said, is there any other way besides multiplication? I thought about it, I can also use the addition method: 4+4+4+4=16.

After my mother heard my explanation, my face showed a satisfied smile.

Second grade of Taojiang County, Taojiang County, Yiyang, Hunan: Liu Jinxiu