My drawing represents 37 - 19.
The red is the leftover when you subtract.
The blue is what you took away when subtracting.
I drew 37 red circles and then took away 19 circles by coloring them blue. You are left with 18 red circles.
The red is the leftover when you subtract.
The blue is what you took away when subtracting.
I drew 37 red circles and then took away 19 circles by coloring them blue. You are left with 18 red circles.