My Dog Denominator

I was only,
A tiny,
Third-grader...
Got a new dog,
De-nom-in-ator...

She'd hide under things,
Don't ask me why,
Hide under stuff,
Regardless of size...
Yes, being below,
Her favorite thing,
"Denominator on bottom!"
I heard her sing...
Under the bed,
When I came home,

I called her,
She barked,
"Leave me alone!"
I tried, and tried,
To pull her right out,
Pulled on her tail,
Yanked on her snout!!!
One day I came home,
What did I see,
She'd braided her fur,
Into 303!
"Oh Denominator, Denominator,
You're so silly like that,"
I laughed,
And told her,
To put on a hat,
To hide the number,
303,
She whimpered and cried,
Looked up at me,
Sad puppy eyes,
Poor puppie's pout,
"Denominator on bottom!!!"
Is what she did shout!