Same disclaimer as always, not a teacher, just a fellow student trying to help others out.
For a change (for me anyway) Dutch is the language that is being difficult in this post. Pay close attention to the pronunciations as they differ from English (unlike the first batch). Here we go.
Let's just go from the top, otherwise I'd have a lot of beautiful asterisks in the table and it would all get confusing.
First, Japanese is pretty straight forward at this level. To use multiples of ten you say "number" + "ten" and to add anything to that you add that number. Not that hard and there aren't any weird pronunciation things in this either.
Onto the western languages.
English has interesting pronunciations on twenty, thirty and fifty (not five-ty but fifty). And a few trouble writings on forty (no u) and eighty (no double t). But over all, English and Japanese have the same pronunciation order.
Dutch... Twintig, dertig, veertig and tachtig have weird spellings and pronunciations. That is the easy part.
Now, the word order in Dutch numbers from twintig upward. 21 is pronounced een-en-twintig. I know that it's written as one word, but you pronounce it as 3. Een en twintig literally means one and twenty. The smaller number goes first and the bigger number second. This goes up to negenennegentig and then changes again, but we're not talking about that this time.
Don't be scared by the ë in some of the words, they are simply there to show that the word isn't really tweeen-twintig but rather twee-en-twintig, just a pronunciation help.
So that is the second post on numbers. Japanese does what it does best, being consistent, English goes on as it sets forth in 15-20 and Dutch is the one being difficult, switching the numbers around in the pronunciation.
But you can now almost count to a hundred, almost.
here is the hiragana and katakana cheat sheet.
I've opened a G+ community for this blog, so you can see and discuss all the posts that are made even when it's not about the languages that I post in the communities to: Kia Learns Japanese Blog Community