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Here's the definition of sudoku in Wikipedia:

数独（すうどく）とは、3×3のブロックに区切られた 9×9の正方形の枠内に1〜9までの数字を入れるペンシルパズルの一つである。

How should one read 9×9の or 3×3の out loud?
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2013-10-10T16:30:30.057
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2013-10-10T22:08:53.927
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question
pronunciation mathematics
How does one read AxB as in "A by B grid" in Japanese?
I think you're asking this because in English, we distinguish _times_ from
_by_ :

  * 3 **×** 3=9 three _times_ three is nine
  * a 3 **×** 3 block a three- _by_ -three block

But I think in Japanese, it's just かける in both cases:

  * ３ **×** ３＝９ さん **かける** さんはきゅう
  * ３ **×** ３のブロック さん **かける** さんのブロック

You can see that both uses are listed on [Wikipedia's article for
`×`](https://ja.wikipedia.org/wiki/%C3%97#.E7.A9.8D) in the same section
(titled 積), and in that section it says that the symbol is usually pronounced
かける.

This [ALC example](http://eow.alc.co.jp/search?q=will+four+by+six) also uses
かける to correspond to English _by_ , although this example has units:

> Also about the photo size, would you like it **four by six inches** or
> **three by five inches**?
>
> あと、写真の大きさですが、 **4インチかける6インチ** のと **3インチかける5インチ** がありますが、どちらにしますか？

I also found some videos online where `×` was used to express dimensions, and
they pronounced it かける in each case. For example, [this
video](http://www.youtube.com/watch?v=__pwVMiD6hA) and [this
video](http://www.youtube.com/watch?v=YSOLGqb81v4) say 2×2 and 3×3 as に
**かける** に and さん **かける** さん. (They're both Minecraft videos.)

So I think you can just say " _number_ かける _number_ ".
CC BY-SA 3.0
2013-10-10T21:58:03.153
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2013-10-10T22:08:53.927
2020-06-17T08:18:27.500
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answer