How many buttons are there?
There are eight buttons.
What is it?
It's an alarm clock.
Where's Pete?
He's at the beach.
What is Pete doing?
He's surfing.
How many buttons are left?
There are two buttons left.
How many button are left?
There are three buttons left.
2 - 1 = 0
Two minus one equals zero.
What is it?
Equals
What is it?
It's a skateboard.
How many buttons are left?
There is one button left.
3 - 2 = 1
Three minus two equals one.
4 - 1 = 3
Four minus one equals three.
1 - 1 = 0
One minus one equals zero.