Ordering Rational Numbers

Plot -1.5 and 1.5 on the number line.

-1.5 is equal to 1.5 because they are the same distance from zero.

-1.5 is greater that 1.5 because it is further to the left on the number line.

-1.5 is less than 1.5 because it is greater to the left on the number line.

Put these numbers in order from least to greatest by plotting them on the number line:

Which number from the last problem is the least? Explain how you know.

Put the following numbers in order from least to greatest:

How well do you think you understand ordering numbers?