Multiplications and divisions are really just many additions and subtractions.

乘法和除法实际上只许多加法和减法累积。

Math often builds on a set of basic skills like addition, subtraction, multiplication and division.

数学基础技能不外乎加减乘除。

To decarbonise an economy is not a simple subtraction; it requires a near-complete overhaul.

经济脱碳不简单减法;这需要近乎彻底改革。

Addition and subtraction are both part of math equations.

加减法两者都数学方程式一部分。

Firms are not always opposed to subtraction.

公司并不反对减法。

Subtraction is not just about removing day-to-day distractions.

减法不仅仅减去日常生干扰。

Additions or subtractions to our external circumstances make very little difference.

增加或减少外部环境 产生区别很小。

And a little bit about pOH, which can be calculated with logarithms, also with subtraction.

它们通常也有很低pH值。

Where do you stand on addition, subtraction, multiplication and division?

你加法与减法乘法与除法什么情况？

Can you do some subtraction for me?

你能帮我做一些减法吗？

If it's addition or subtraction it's only the number of figures after the decimal point that matters.

第一，它告诉你已经测量数据多少。 第二，它告诉你这个值测量到多精准。

But scientists have found that other animals, such chimpanzees, monkeys, and even pigeons can perform some addition and subtraction.

但科学家发现，黑猩猩、猴子、甚至鸽子等其它动物也能做一些加法和减法。

This spectrum subtraction is what happens as sunlight interacts with the elements in the sun's atmosphere and in earth's atmosphere too.

当太阳光与太阳大气元素以及地球大气元素相互作用时，就会发生频谱相减。

ENIAC could perform 5000 ten-digit additions or subtractions per second, many, many times faster than any machine that came before it.

ENIAC 每秒可执行 5000 次十位数加减法，比它前辈快很多很多倍。

Math skills such as addition, subtraction, multiplication and division should already be mastered.

应该已经掌握了加减乘除等数学技能。

Circuits can be combined to perform complex operations like addition and subtraction.

电路可以组合起来执行加法和减法等复杂操作。

Up until this moment you probably believed subtraction was a fact of life.

直到这一刻，你可能仍然认为减法生不可改变事实。

Addition, subtraction, multiplication, division, squaring, cubing, roots, logarithms.

加法，减法，乘法，除法，平方，立方，根号，对数。

For auto insurance companies, it's straightforward subtraction.

对于汽车保险公司来说，这只一个简单减法运算。

Like no one said addition by subtraction.

就像没说“减法带来增益”。