加法用英语说是 addition。这个词来源于拉丁语 additio，意思是“加法”或“增加”。

一些例句：

The addition of this ingredient will make the dish taste better. (加入这种成分会让菜肴变得更好吃。)

Can you do the addition in your head or do you need to use a calculator? (你能在脑子里算出来吗，还是需要用计算器？)

We need to make sure that our addition is correct before we move on to the next step. (我们需要确保我们的加法是正确的，然后才能继续下一步。)