A quantity with opposite meaning
Positive and negative numbers are a method introduced in mathematics to express "quantities with opposite meanings". It can use positive numbers and negative numbers to represent quantities with opposite meanings in life.
The meaning of rational number
Rational number is a kind of number in mathematics, including positive number, negative number and zero. Rational number has a wide meaning and can be applied to all aspects of life.
Cooperation and communication
In the process of exploring new knowledge, we can discuss problems, exchange ideas and explore the application of positive and negative numbers.
A quantity with opposite meaning
A quantity with opposite meanings refers to two quantities with opposite meanings. In life, we can use positive and negative numbers to represent these quantities, such as temperature, height and so on.
Matters needing attention
When using positive numbers and negative numbers to represent quantities with opposite meanings, we need to pay attention to two points: first, there are two quantities, which need units; Second, these two quantities have opposite meanings.