Pre-Algebra Lessons 1.1.-1.3 Review

Front

What is the relationship between |25| and |-25|?

Back

= (They are equal because absolute values are always non-negative.)

Front

What do we call two numbers that are opposites?

Back

Additive inverses.

Front

Is zero considered positive, negative, or neither?

Back

Neither; zero is neither positive nor negative.

Front

What is the relationship between |-9| and |6|?

Back

> (|-9| = 9, which is greater than 6.)

Front

What is the relationship between -4 and -8?

Back

> (Because -4 is greater than -8 on the number line.)

Front

What is the absolute value of a number?

Back

The distance of that number from zero on the number line, always non-negative.

Front

What is an example of additive inverses?

Back

3 and -3 are additive inverses because their sum is 0.

Front

How do you compare two negative numbers?

Back

The number closer to zero is greater. For example, -4 > -8.

Front

What is the absolute value of -15?

Back

15.

Front

If a number is negative, what can you say about its absolute value?

Back

Its absolute value is positive.