arithmetic

柯林斯词典

1. N-UNCOUNT Arithmetic is the part of mathematics that is concerned with the addition, subtraction, multiplication, and division of numbers. 算术
...teaching the basics of reading, writing and arithmetic. …教授读、写、算的基本知识。
2. N-UNCOUNT You can use arithmetic to refer to the process of doing a particular sum or calculation. 计算
4,000 women put in ten rupees each, which if my arithmetic is right adds up to 40,000 rupees. 4千名妇女每人交10卢比，如果我的计算准确的话加起来总共是4万卢比。
3. N-UNCOUNT If you refer to the arithmetic of a situation, you are concerned with those aspects of it that can be expressed in numbers, and how they affect the situation. (某形势的) 数据
The arithmetic was discouraging. In less than two months, they had used up six months' worth of food. 数据不容乐观。在不到两个月里，他们已经吃完了6个月的食物。

What does all that add up to? I'm afraid my mental arithmetic isn't very good.
These kids have had seven years in school and they can't even do some simple arithmetic!
She was taught reading , writing and arithmetic at the village school .
He tried to do his tax form but he couldn't work out all the arithmetic.
I couldn't work in a post office - there is too much arithmetic involved !