Multiplications and divisions are really just many additions and subtractions.

乘法和除法实际上只是许多加法和减法累积。

This worked in reverse when doing subtraction, too.

做减法时机器会相工作。

Addition and subtraction are both part of math equations.

加减法两者都是数学程式一部分。

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。

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。

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

但学家发现，黑猩猩、猴子、甚至鸽子等其它动物也能做一些加法和减法。

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

经济脱碳不是简单减法;这需要近乎彻底改革。

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。