Technical Japanese

明けましたおめでとうございます。
Happy New Year!

Well, I’m back after a Christmas/New Year break.

I realized there were more fundamental words words than those I started with in my Basic Math post, so today I wanted to go over the arithmetical operations, in case you’re not familiar with them yet.

足す – たす – Add
引く – ひく – Subtract
掛ける – かける – Multiply
割る – わる – Divide

The sentence patterns for using these differ somewhat as well:

1足す1は2。 – 一足す一は二。 – One plus one is two.
5引く2は3。 – ごひくにはさん。 – Five minus two is three.
6掛ける3は18。 – ろくかけるさんはじゅうはち – Six times three is eighteen.
9割る3は3。 – きゅうわるさんはさん。 – Nine divided by three is three.

It is common to use Arabic numerals rather than Japanese characters, especially when talking about mathematics.

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