### Playful Patterns and Puzzles Math Camp

Welcome Math Commanders!
Day 1 – Battle in the Polygon
Day 2 – Calculating Beauty
Day 3 – The Power of the Pyramid
Day 4 – Time to get in shape!
Day 5 – To Infinity and Beyond!
The Final Quest!

# Battle in the Polygon – Subtraction Action

Round 2: And round 2 is off to a great start with both contestants landing some big blows.  Let’s keep examining this problem, and see if we can be sure we know the right answer before the bout ends. Here are a few more problems for you to think about and solve.  How do these problems relate to our battle?

$$~~~~~~1$$$$-.99=$$

$$~~~~~~1$$$$-.9999=$$

$$~~~~~~1$$$$-.9999999999\ldots =$$

(Remember “…” means “going on forever”)

Explorations