Numbers & Their Opposites Review

Front

What is an absolute value?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. For example, the absolute value of -4 is 4, written as |-4| = 4.

Front

How do you compare absolute values?

Back

To compare absolute values, look at the numbers without their signs. For example, |5| = 5 and |-3| = 3, so |5| > |-3|.

Front

What does it mean if an inequality is false?

Back

An inequality is false when the relationship between the two values does not hold true. For example, if |4| > |6| is stated, it is false because 4 is less than 6.

Front

How do you locate negative numbers on a number line?

Back

Negative numbers are located to the left of zero on a number line. For example, -4 is four units to the left of zero.

Front

What is the relationship between depth and absolute value?

Back

Depth below a reference point (like water surface) is represented as a negative number. The absolute value indicates how far below the surface it is.

Front

How do you represent a number greater than zero on a number line?

Back

Numbers greater than zero are located to the right of zero on a number line. For example, +5 is five units to the right of zero.

Front

What is the absolute value of -6?

Back

The absolute value of -6 is 6, written as |-6| = 6.

Front

If Lee is at -5 feet and Kelsey is at +8 feet, who is further from the starting point of 0?

Back

Kelsey is further from the starting point of 0 because +8 is greater than -5.

Front

What does it mean for two numbers to have the same absolute value?

Back

Two numbers have the same absolute value if they are the same distance from zero, but may be on opposite sides of zero. For example, |-3| = |3|.

Front

How do you find the absolute value of a number?

Back

To find the absolute value of a number, remove its sign. For example, the absolute value of both -7 and 7 is 7.