What number is it?
It's number one.
What number is it?
It's number two.
What number is it?
It's number three.
What number is it?
It's number four.
What number is it?
It's number eleven.
What number is it?
It's number fifteen.
What number is it?
It's number seventeen.
What number is it?
It's number twelve.
What number is it?
It's number twenty.
What number is it?
It's number eight.
Add or subtract: Two plus two equals...
four.
Add or subtract: Ten minus three equals...
seven.
Add or subtract: Eleven plus five equals...
sixteen.
Yes or no? Twenty minus six equals fourteen.
Yes
Yes or no? Nineteen minus seven equals five.
No
Yes or no? One plus seventeen equals eighteen.
Yes
