This game was a lot of fun! We need to get some picture cards so that we can use different words next time. Remember, the idea is ask someone to bring something to you in Japanese. The other people have to listen to you and pick the right thing. First person wins!
Normally I would make a wee sheet for you and attach it to this post, but there's some good web links for numbers so let's use those this time. :D
In Japanese, the words you use for a number can change depending on what you're counting. We're not going to worry about that for the time being, and we'll focus on the main numbers first. This website has a good table showing the numbers (you want the the second column, titled Sino-Japanese).
Check out this youtube video too: