How can we help?

You can also find more resources in our Help Center.

integers

-3, -2, -1, 0, 1, 2, 3

whole numbers

0, 1, 2, 3

natural numbers

1, 2, 3

rational

any number that can be written in the form a/b where both a and b are integers

irrational

any value that is not rational

MAY NOT

If there is no decimal in the question, you ______ use it in the answer.

time

Rate X ____ = Distance

set

{ 1, 2, 3, 4}

in both sets

intersection (upside down U)

in either set

union (U)

*****Isolate the absolute value

ALWAYS do what first when solving inequalities with absolute values?

OR

In an inequality with absolute value: A > B ___ A < -B

AND

A < B and A > -B

closed

[ ]

open

()