Numbers joke for kids

The teacher asked little Johnny if he knew his numbers yet.

"Yes, teacher," he said, "my dad taught me."

 "Good, Johnny. Tell me what comes after two," the teacher said.

"Three," replied little Johnny.

"Very good. What comes after five, Johnny?" asked the teacher.

"Six," answered little Johnny.

"Excellent. Your dad did a very good job.

 Now, what comes after ten?" the teacher asked.

"A Jack!" replied little Johnny.