数字. The various spoken and written forms of words and characters covering digits, numbers, numerals, including derived forms such as ordinals.

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30
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4answers
16k views

How to choose between “よん” (yon) vs “し” (shi) for “四” (4) and “しち” (shichi) vs “なな” (nana) for “七” (7)?

Two numbers in Japanese have two pronunciation alternatives. 四 / 4 can be pronounced either "よん" (yon) or "し" (shi) 七 / 7 can be pronounced either "しち" (shichi) or "なな" (nana) I know that "し" (shi)...
18
votes
3answers
1k views

Rules for slang of Japanese numbers

I often hear Japanese using a different method for saying a number like "248" as によんぱ — especially for highways and license plates. While this one is easy to understand, there are others that I don'...
7
votes
2answers
382 views

Reading a number range [duplicate]

I have a bottle of 洗顔料(facial soap), and the instructions are: ご使用量の目安 ポンプ1~2回 (use about 1 to 2 pumps) If I were to read 1~2 aloud, how would I do it?
7
votes
2answers
316 views

Do we use odd day pronunciations outside of calendar ranges?

After reading @jkerian's comment in this post, I started thinking about this. Here's the comment in full: On a side note, all days ending in '4' are also irregular, and use ~よっか. So the 14th is ...
13
votes
3answers
5k views

About writing numbers using Japanese numerals vs using Arabic numerals

I noticed that even though Japanese language has kanji characters for numbers (e.g. 十、百、千、万 etc), there are many places where Arabic numerals are used instead, for example, prices for shop items are ...
11
votes
1answer
1k views

How do you do a countdown?

For example, when JAXA launches a rocket, or people count the seconds to the New Year, do they use し or よん to count 4? do they use しち or なな to count 7?
8
votes
2answers
394 views

Confusion about 一千億 and 一千兆

I recently created a web app called Kazu which aims to help speakers of Japanese and English learn to read numbers in both languages. I found a web page which said that 'for numbers over 1万, "1000" ...
22
votes
4answers
2k views

Differences between 度 and 回 when counting occurrences

What are the differences between using 度 and 回 when used to count number of occurrences? For example: そんなことは一度もしたことがない そんなことは一回もしたことがない Are there any restrictions on what kind of actions referred ...
12
votes
3answers
3k views

Are there native Japanese numbers greater than 10? What use are they?

Most people who've taken a Japanese 101 class know the 10 native Japanese numbers (一つ、二つ・・・十). It's always seemed odd that a system would stop at 10 when so many things in life need larger numbers. ...
6
votes
2answers
1k views

List of Japanese counter words [closed]

What are the essential Japanese counter words? For example -dai for machines, -mai for papers and stuff like that. What else to expect/know? Thank you
15
votes
1answer
1k views

Temperature abbreviations?

A certain dialog in my book has a man describing the symptoms of his cold to the doctor. It reads thus: 医者:熱はありますか。 患者:はい、きのうから。夕べはぞくぞく寒気がしたので、高熱が出るんじゃないかとひやひやしたんですが、今のところ7度8分【なな・ど・はち・ぶ】...
11
votes
4answers
458 views

Range of numbers

How would one express a range of numbers regarding an action? Example: I usually study anywhere between 2 to 4 hours a day. Would the からーまで grammar structure be appropriate here? 一日に普段2から4時間までを勉強する。...
13
votes
2answers
324 views

How to read the X in 5X4間?

A book about architecture I'm trying to read (it's a bit of a slog what with the technical jargon and such) contained this description of a temple building: 二重、初重5X4間、裳階 (もこし) つき、上重4X3間. So it's two ...
5
votes
4answers
203 views

Pronunciation of 九

The dictionary I'm using lists two common pronunciations of 「九」: 「きゅう」 and 「く」. I've usually heard it as 「きゅう」 before, but when saying 「9時」, it always seems to be 「くじ」. Is there a rule to this?
5
votes
1answer
132 views

Maths sentences: 足す and 掛ける

I noticed a lack of case marking particles in mathematical sentences: 1足す2は3である。 3掛ける4は12である。 足す and 掛ける are verbs, does subject and object analysis apply to this? Do they take on the ...
8
votes
2answers
872 views

How to say 24 divided by 8 equals 3

Pretty sure you have to use 割 but I don't know which pronunciation to use and how to say "equals" in this context.
8
votes
2answers
238 views

Prefixing `一` to numbers

It seems to me that 千 is exceptional in having it prefixed with 一. As for 一, 十, 百, they work together with 千 to describe the numbers from 1 to 9999, so they compete with one another, or are ...
8
votes
1answer
220 views

How do you read zeros in abbreviated years? (i.e. 03年)

I came across 03年度 and 09年度, and while the meaning is clear I didn't know the actual way of reading it. My first reaction was ゼロさんねんど, but I have no way of checking if that's right. I thought it might ...