They're not going to be positive. We've said that.

经说过，它不会是数。

From your perspective, no matter how far you look, this sum will be positive.

从你的角度来看，无论你看多远，总和都是数。

Negative on one side, positive on the other.

一边是负数，另一边是数。

I think this month, it will turn to positive.

认为这个月该指数将转为数。

I'm saying it is to the right, because it is positive.

题中表示“右”， 因为力为数。

That's a positive number, so the the negative flag is false.

这是一个数，所以负标志是假的。

And then, when you square it, it becomes a positive number.

然后，当你对它进行平方时，它就变成了一个数。

Notice that subtracting the negatives and adding a positive did the same thing.

请注意，减去负数和添加数会产生相同的效果。

And a positive times a negative equals a negative.

数乘以负数等于负数。

After that, positive numbers indicating upward motion, and negative numbers indicating downward motion.

之后 数表示上运动 负数表示下运动。

If we add positive 4 and negative 70, is our answer gonna be positive or negative?

如果将数 4 和负数 70 加起来，的答案是数还是负数？

On the other hand, he says there is a smallest number if you're counting positive numbers.

另一方面，他说如果你计算的是数，就会有一个最小的数字。

So we need a way to represent positive and negative numbers.

所以需要一种方法来表示数和负数。

And the area above the horizontal axis is positive and the area  below the horizontal axis is negative, right?

横轴上方的面积是数, 横轴下方的面积是负数, 对吗?

Cady Heron and The Plastics. Things get interesting when we add positive and negative numbers together.

卡迪·赫伦和塑料制品。当将数和负数相加时，事情会变得有趣。

This right here is 100 over 20 plus 14 minus 20 is negative 6 squared is positive 36.

这就是 100 除以 20 加上 14 减去 20 是负数 6 的平方是数 36。

Negative 3 times positive 7 gives you negative 21. So 5 week ago you were 15 pounds heavier.

负数 3 乘以数 7 得出负数 21。所以 5 周前，您的体重增加了 15 磅。

So the distance is, you just want to positive number here.

所以距离是，你只想在这里为数。

We're going to have to swap this inequality sign as well, and this positive 2.13 will become a negative 2.13.

还必须交换这个不等号，这个数 2.13 将变成负数 2.13。

Positive 1, plus negative 2, is negative 1. And what happens if we add negative numbers together?

数1加上负数2就是负数1。如果把负数加在一起会发生什么？