Where can we find negative numbers?

2006-10-18 7:38 pm
Where can we find negative numbers?
and what is the function of the negative numbers?

(find some pic about the the things)
更新1:

use english to answer

回答 (2)

2006-10-18 8:34 pm
✔ 最佳答案
Negative number is used for calculation, if it is considered as a tool.
For example, when we calculate our income and expenditure,
When the expenditure is greater than the income,
We can use negative number to represent the net expenditure.

Also, we can use negative number to calculate for our convenience,
such as we can consider subtraction as adding a negative number.
2006-10-21 11:59 pm
he he
thermometer


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