Lyrics:

Three is a magic number,
Yes it is, it's a magic number.
Somewhere in the ancient, mystic trinity
You get three as a magic number.

The past and the present and the future.
Faith and Hope and Charity,
The heart and the brain and the body,
Give you three as a magic number.

It takes three legs to make a tripod
Or to make a table stand.
It takes three wheels to make a vehicle
Called a tricycle.

Every triangle has three corners,
Every triangle has three sides,
No more, no less.
You don't have to guess.
When it's three, you can see
It's a magic number.

A man and a woman had a little baby,
Yes, they did.
They had three in the family,
And that's a magic number.

3-6-9, 12-15-18, 21-24-27, 30.
3-6-9, 12-15-18, 21-24-27, 30.

Now the Multiples of 3
Come up three times in each set of 10.
In the first 10 you get 3-6-9,
And in the teens ten its 12-15 and 18,
And in the 20's
You getta 21-24-27,
And it comes out even on 30.
Multiply backwards from 3 x 10:
3 x 10 is 30, 3 x 9 is 27, 3 x 8 is 24, 3 x 7 is 21,
3 x 6 is 18, 3 x 5 is 15, 3 x 4 is 12,
And 3 x 3 is 9, and 3 x 2 is 6,
And 3 x 1 is 3 of course.

Now dig the pattern once more:
3....3-6-9
12...12-15-18
21...21-24-27...30

Now multiply from 10 backwards:
3 x 10 is 30 (Keep going), 3 x 9 is 27, 3 x 8 is 24,
3 x 7 is 21, 3 x 6 is 18, 3 X 5 is 15, 3 x 4 is 12,
And 3 x 3 is 9, and 3 X 2 is 6.
And 3 x 1 ...
What is it?!
Three!
Yeah. That's a magic number.

A man and a woman had a little baby,
Yes, they did.
They had three in the family,
That's a magic number