How to solve the math problems of grade four without equations? Xiao Ming's father is 27 years older than Xiao Ming. Four years later, his father's age is four times that of Xiao Ming. How old is his father now?

How to solve the math problems of grade four without equations? Xiao Ming's father is 27 years older than Xiao Ming. Four years later, his father's age is four times that of Xiao Ming. How old is his father now?

Xiao Ming's father is 27 years older than Xiao Ming. That's the age difference, and it's the same
Four years later, my father's age is four times that of Xiao Ming. That is to say, my father's age is three times more than Xiao Ming's. The three times more is the age difference of 27 years,
Xiaoming's age after 4 years is 1: 27 / 3 = 9 (years old)
Xiaoming now: 9-4 = 5 years old
Xiao Ming's father now: 5 + 27 = 32 (years old)