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Addition
加法
Addition is the process of putting numbers together.
加法是把數(shù)字放在一起的運(yùn)算過程。
Addition is one of the simplest things in math.
加法是數(shù)學(xué)中最簡單的運(yùn)算之一。
It is very basic in math as well.
它在數(shù)學(xué)中也是非常基礎(chǔ)的。
Everybody knows the + sign.
每個人都知道加法符號。
The + sign is one of the math symbols.
加法符號是一個數(shù)學(xué)符號。
+ means more in Latin.
加號在拉丁文中是更多的意思。
When was the + sign first introduced?
加號第一次被引入是什么時候？
In 1557, one German mathematician introduced the + sign for the first time.
1557年，一位德國數(shù)學(xué)家第一次引入了加號。
