Hi there!
You can use numerical expressions to figure out the area of a wall, which would help you figure out how much paint you need to buy. You could also use numerical expressions to figure out the approximate cost of groceries, movie tickets, and more! Numerical expressions can also be used to figure out how much of something you have left after using/eating/taking part of it.
Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
