.09?.9?Whats The Differents?

My portfolio product is an exit slip. On my exit slip I had to explain the differents between .09 and .9.The differens is that .9 means you have 90 things,and .09 means that you have only 9 things.

I learned how to explain the differents of decimales.

Yes. I'm very proud of my portfolio product work. I think I did good on decimals,but not really explaining. Also I think I don't really need to fix any thing.
MJ