算数用英语怎么说

算数用英语可以翻译为 "arithmetic"。这个词来源于古希腊文，原意为 "number" 或 "numerical calculation"。例句如下：

I need to brush up on my arithmetic before I take the math test.

我需要在数学考试前重温一下算数。

The store clerk used basic arithmetic to calculate the total cost of the items.

店员用基本算数计算物品的总价。

My son is struggling with arithmetic in his first grade math class.

我儿子在一年级的数学课上遇到了算数的困难。