Читать книгу Algebra I All-in-One For Dummies - Mary Jane Sterling, Mary Sterling Jane - Страница 40

But what about 0? I keep comparing numbers to see how far they are from 0. Is 0 positive or negative? The answer is that it’s neither. Zero has the unique distinction of being neither positive nor negative. Zero separates the positive numbers from the negative ones — what a job! When using the number line to determine the order of numbers — which one is larger — you look at how far the number is from 0. You already know that a positive number is going to be larger than a negative number, but comparing two negative numbers can be a bit more challenging. You put the two negative numbers on the number line. The negative number that’s farthest from 0 is the smaller of the two numbers.

Q. Which number is larger, –3 or –13?

A. –3. Look at the following number line. You see that –3 is to the right of –13. In terms of distance from 0, –13 is much farther away, so it is smaller than –3.

11 Which is larger, –2 or –8?

12 Which has the greater value, –13 or –1?

13 Which is bigger, –0.003 or –0.03?

14 Which is larger, or