 |
| (Wikimedia) |
Note: Some people think that the giver in this song gave only one partridge in a pair tree. But it was twelve!
Get Ready: Do you know a formula for adding tetrahedral numbers? Look at this.
|
| (Wikimedia) |
Note: Some people think that the giver in this song gave only one partridge in a pair tree. But it was twelve!
Get Ready: Do you know a formula for adding tetrahedral numbers? Look at this.