His name was,
El Numero,
The old number thief,
Who thought stealing was good,
It was his belief…
He liked to steal numbers,
The ones that I’d written,
Right from my notebook,
Like a real sneaky kitten…

And although my 10th birthday,
Was that very day,
Number Thief decided,
To come anyway!

If number thief had stolen ten numbers each year I had been alive,
how many numbers had he stolen in total? (I was 10 years old)