List of numbers without counters

0　     -　零 (ぜろ・れい)・〇(まる)
1　     -　一 (いち・ひと[つ])
2　     -　二 (に・ふた[つ])
3　     -　三 (さん・み[っつ])
4　     -　四 (よん・よ[っつ]・し)
5　     -　五 (ご・いつ[つ])
6　     -　六 (ろく・む[っつ])
7　     -　七 (なな[つ]・しち)
8　     -　八 (はち・や[っつ])
9　     -　九 (きゅう・く・ここの[つ]）
~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.
10　   -　十 (じゅう・とお）  
20　   -　二十 (にじゅう)
30　   -　三十 (さんじゅう)
40　   -　四十 (よんじゅう)
50　   -　五十 (ごじゅう)
60　   -　六十 (ろくじゅう)
70　   -　七十 (ななじゅう)
80　   -　八十 (はちじゅう)
90　   -　九十 (きゅうじゅう)
 ~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.
100　  -　百 (ひゃく)
300*　 -　三百 (さんびゃく)
600*　 -　六百 (ろっぴゃく)
800*　 -　八百 (はっぴゃく)
1,000 　-　千 (せん)
3,000*　-　三千 (さんぜん)
8,000*　-　八千 (はっせん)
10,000　-　一万 (いちまん)
100,000,000　-　億 (おく)
*Special pronunciation.
 ~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.
So how to I read numeric value?
For numbers 1-10, just read the 1st hiragana pronunciation in the bracket - ichi,ni,san,yon,go,roku,nana,hachi,kyuu,jyuu....

For numbers that is in between 1-999,999,999, you just need to read according to their value.
For example
341,758,629 - 三億四千百七十五万八千六百二十九
(さんおく　よんせん　ひゃく　ななじゅう　ごまん　はっせん　ろっぴゃく　にじゅう　きゅう)

Special Pronunciation
1) 百、千、億
 For 100, 1,000 and 100,000,000, we will omit out 1(ichi) digit in front.
However, one should take note that for 10,000, it is pronounced as 一万(いちまん).


2) 四、七、九
Usually, one would just pronounce 4,7,9 as よん、なな、きゅう as modern Japanese way of reading. This is to avoid using the pronunciation of し、しち and they can also mean death (死、死地) and pronunciation of く also means suffering(苦).
However, one would use the old reading style for calender date and time.
For example, April, July and September are pronounced as 四月(しがつ)、七月(しちがつ)、九月(くがつ).


3) 三、六、八
This is perhaps some of the most confusing numerical that most non native Japanese learners will have problem memorising. The changing of sounds in 3,6,8 are due to rendaku. It's pretty hard to explain at elementary level by itself.
Sad to say, I can only offer one advise: forced memorisation.


4) 零 or 〇
Both are accepted in modern Japanese speaking. But sometimes, in quick pronunciation by native Japanese for numerical terms, one may use 〇 instead of 零.
However, in written context, only 零 is used.


What is つ?
That's a counter usage. However, there's quite a few counters in Japanese so we will touch on this topic in another post soon :)