The other day, I found that Minkai is doing plus and minus on decimal. I was quite surprised - he was only six. He learned it by reading the textbook... The computation was all correct.
On the dining table, I wanted him to eat some asparagus. To encourage him to eat it and minimize whining, I told him that I gave him 1 asparagus plus 3.5 asparagus (one small piece). As expected, he showed great interest and came back to the table. But... he could not figure it out. I was surprised again. Finally, he got a piece of paper, and I added "$" on the equation. THEN, he figured out the result, $4.5.
Obviously, Minkai knows money!
