100 words in Japanese

After reading that five hundred words is the minimum needed for basic communication, I wanted to learn which 500 words are the most important, or frequently used, so that I can focus on learning those first, then move on from there. At the local bookstore, I found a book by Boye De Mente that claimed to contain "100 key words" in Japanese. Here they are:

Words 1-10:
Good Morning おはよう　ございます
Good Afternoon　こんにち　は
Good Evening　こんばん　は
Thank you very much どうも　ありがとう
Pardon me, excuse me, I am sorry, thank you　すみません
Please (after you)　どうぞ
Please ( - give me)　ください
Water みず
I　わたし
I (formal)　わたくし

Words 11-20
to me　わたしに
my, mine　わたしの
we/our, ours　わたしたち
am, is, are　です
am not, is not, are not　で　は　ありません
was, were　でした
was not, were not　で　は　ありません　でした
name　なまえ
what　なん / なに
you/ your, yours　あなた
(two additional words, a typo in the book):
an American person or American people　
a Japanese person or people

Words 21-30
who/ whose　どなた
this　これ
that　それ
he, she, him, her/ his, hers　あの　ひと
message　メッセージ
when　いつ
where　どこ
yes　はい
Yes, that's so, that's right　そう　です
no　いいえ

Words 31-40
to go (plain)　いく
hotel　ホテル
to eat　たべる
food, meal　しょくじ
Japanese food　わしょく
Western food　ようしょく
to drink　のむ
like (be fond of, love)　すき
to receive, accept　いただきます
(it is) delicious　おいしい

Words 41-50
to meet　あう
what time?　なんじ
To be, have (for objects)　ある
how much　いくら
high, expensive　たかい
cheap, inexpensive　やすい
to do　する
good (fine, acceptable)　いい
which (of two)　どちら
which (of many)　どれ

Words 51-60
small, little　ちいさい
large, big　おおきい
number one, most　いちばん
to send, mail　だす
here　ここ
to stop (come to rest). To stay (overnight).　とまる
To wait　まつ
to come　くる
to buy　かう
shopping　かいもの

Words 61-70
money　おかね
to have　もつ
to call (out to someone, call a taxi, etc.)　よぶ
telephone　でんわ
to write　かく
to be able to do, can do　できる
today　きょう
tomorrow　あした
English　えいご
Japanese　にほんご

Words 71-80
how many　いくつ
to need, want　いる
to understand, to know, to be clear　わかる
number/ numbers　ばん / ばんごう
one person　ひとり
two persons　ふたり
three persons　さんにん
four persons　よにん
time, hour　じかん
minute, minutes　ふん / ぷん

Words 81-90
morning (AM)　ごぜん
afternoon (PM)　ごご
taxi　タクシー
subway, metro, underground　ちかてつ
train　でんしゃ
station　えき
near　ちかい
Bullet train　しんかんせん
hot (weather and to the touch)　あつい
cold (weather), to feel cold　さむい

Words 91-100
cold (to the touch)　つめたい
coffee　コーヒー
milk　ミルク
rain　あめ
snow　ゆき
to fall, come down　ふります
sick　びょうき
doctor　いしゃ
to walk　あるく
far, distant　とおい

Special Set Phrases:
Welcome!　いらっしゃいませ。
I'm home!　ただいま。
Welcome back (home)!　おかえり　なさい。
I am intruding. Excuse me.　おじゃま　します。
I have intruded. I have bothered you. Goodbye.　おじゃま　しました。
Excuse me. I'm sorry.　しつれい　します。
Sorry for disturbing (bothering) you.　しつれい　しました。
I receive, accept (the food, drink).　いただきます。 (duplicate of word 39 above)
It was nothing.　おそまつさま。　
Thanks to you. Thank you for asking.　おかげさま　で。
Thanks for all your hard work. Well done.　ごくろうさま　でした。
Please (do something for the speaker). I beg of you.　おねがい　します。 / おねがい　いたします。
Please (do something for the speaker) (very polite).　よろしく　おねがい　します。　

Common Everyday Expressions:
How are you? Are you well?　おげんき　です　か。
I'm fine. And you?　げんき　です。　．．．さん　は。
The weather is fine, isn't it!　おてんき　は　いい　です　ね。
Just a moment, please. (polite)　しょうしょう　おまち　ください。
Just a second! Hang on! (informal)　ちょっと　まって。
Don't mention it. You're welcome.　どう　いたしまして。
Pleased to meet you.　はじめまして。