4. Happy Pi Day Happy Pi day to you, Happy Pi day to you,
to the tune of “Happy Birthday”
Happy Pi day to you,
Happy Pi day to you,
Happy Pi day everybody,
Happy Pi day to you.

5. YAY !!

6. Oh Number Pi
(to the tune of “Oh Christmas Tree”)

7. Oh, number Pi
Oh, number Pi
Your digits are unending

8. Oh, number Pi
Oh, number Pi
No pattern are you
sending

9. You’re three point one,
four one five nine,
and even if
we had more time,

10. Oh, number Pi
Oh, number Pi
For circles length
unbending

11. Oh, number Pi
Oh, number Pi
You are a number
very sweet

12. Oh, number Pi
Oh, number Pi
Your uses are so
very neat

13. There’s 2 Pi r
and Pi r squared,
a half a circle
and you’re there,

14. Oh, number Pi
Oh, number Pi
We know that Pi’s
a tasty treat

15. YAY !!