For example:
Today, I went to the supermarket. There are so many goods in the supermarket that I am dazzled.
My mother picked out two automatic lead cores and said they were gifts for me to inspire me to do my homework. A pencil costs 3 yuan, and my mother bought two double-line books, one for 0.5 yuan.
My mother asked me, "My little genius, how much is a * * *?"
I thought about it and said to my mother, "A ***7 yuan. Two automatic lead, one ternary, that is 3×2=6 (yuan), a notebook, 0.5 yuan, bought two, that is, 0.5+0.5= 1 (yuan) and then calculated a * * *, that is, 6+ 1=7 (yuan), that's it.
Mom smiled and was very happy. I smiled, too. Mom is happy, so am I.
The above is what I just came up with, just out of the oven.