How many teeth do I have?

Most children have 20 baby (or "primary") teeth by age three. When you're around six years old, some teeth fall out and others grow in. You will have 32 permanent teeth when you grow up.

Are babies born with teeth?
Will my baby sister ever get any teeth?
Mom says my baby brother is teething. What's that?
Why do baby teeth fall out?
How do my teeth know when to fall out?