Mr. R.’s World of Math

9 and 1,
Yes,
1 and 9,
Raced each other all the time,
Racing day and racing night,
Swerving, screeching outta’ sight!
“1’s the best!” yelled blue car 1,
“9’s the best!” yelled red car 9,
Which one just won with record time?
Both cars raced and both raced fine!
They raced, and raced, and raced to win,
Whose wheels were fastest when they spin?
Their races really got real wild,
Scary fast, and never mild!
One day they bumped,
What happened then?
The 2 combined,
To make car 10!