Mr. R.’s World of Math

A very silly spider,
Slipped down a water spout,
Our teacher was surprised,
When something strange fell out!
1 blue leg up front,
1 red leg round back,
2 long legs on spider,
What did spider lack?
Spiders each have 8 legs,
That we know is true,
So spider’s missing 6 legs,
His legs count up to 2!