Mr. R's song about adding 9 + 9 (mathstory.com)
SEE THE VIDEO ON TEACHERTUBE!!

Lyrics:

One day the sun,
Forgot to shine,
“I’m busy adding,
9 and 9!”
Screamed the sun,
“I don’t have time,
When I’m adding, up 9 and 9!!!!!!!!!”
It got dark,
And it got cold,
Then a girl,
9-years old,
Said some words,
Truth be told,
Said some thing,
That was quite bold!
One day the sun,
Forgot to shine,
“I’m busy adding 9 and 9!”
Screamed the sun,
“I don’t have time,
When I’m adding up,
9 and 9!!!!!!!!!
“Listen Sun,
It’s plain to me,
We need your light,
So we can see!”
She told the sun,
“9 and 9,
Makes 18,
Every time!
9 and 9,
Makes 18,
9 and 9,
Makes 18,
9 and 9,
Makes 18,
Every time!
Every time!
Sun said,
“Yes!! Yes, you’re right,”
And then turned on,
Her sunny light! Less